Stats Test

#1
I have already completed my online stats test, and the teacher is not grading them until after spring break... and I really want to know my score now. What are the answers to the following test.... 60 multiple choice/TF questions

I will paypal $10 to the first person who posts the full answer list, just pm me your PayPal info.


Question 1

In a crosstabulation, the number of responses that appear to the right and at the bottom of the table is called
Answer

cell count

marginal totals

row total

column total
1 points
Question 2

Which of the following is a variable?
Answer

Hair color

Red hair

Blond hair

Black hair

all of the above
1 points
Question 3

The measures of central tendency provide
Answer

what is available in the data.

the comparison of the mean and mode.

the typical values.

how much similarities exist in the data.
1 points
Question 4

The analysis of a relationship between two variables is also known as
Answer

multivariate analysis

univariate analysis

control analysis

bivariate analysis
1 points
Question 5

A percentile is
Answer

the value that divide a data set of values into four equal parts.

the value of a variable below which a certain percent of observations fall.

the value (or score) above which 25 percent of the observation is found.

the value that equals to the median.
1 points
Question 6

According to the textbook and lecture, GSS involves non-institutionalized adults age 18 and older.
Answer True
False
1 points
Question 7

If you are interested in studying a relationship between age and number of auto accidents in the last ten years using a scatterplot analysis, _______ variable is the one to be plotted on the horizontal axis (x axis).
Answer

either one

number of auto accidents

age

automobiles
1 points
Question 8

Which one of the following is NOT a measure of variability?
Answer

range

coefficient of variation

standard score

median

standard deviation
1 points
Question 9

Suppose that in a scatterplot analysis you find the dots concentrated around a line and forming a band. In this case, the relationship between the two variables is most likely to be:
Answer

non-existent

weak

strong

any one of the above.
1 points
Question 10

In a scatterplot analysis, ____ variable is the one to be plotted on the horizontal axis (x axis).
Answer

categorical

dependent

independent

control
1 points
Question 11

You want to find the number of married, single, widowed, divorced, and never-married purchasers of different brands of coffee (Starbucks, Tally's, Folgers, MJB, and Other ). In this case, _____ is the most appropriate type of analysis.
Answer

Means procedure

Crosstabulation

Scatterplot

Frequency table
1 points
Question 12

If you are interested in learning about American's feelings about food safety and interview 6,000 American adults selected,
Answer

your sample is United States of America

your sample is 6000 American adults

your sample is feelings about food safety

none of the above
1 points
Question 13

Below is a list of variables. Select one that is a categorical variable.
Answer

favorite type of music (such as rock, opera, country, classic)

marital status

race

eye color

all of the above
1 points
Question 14

Indicate the appropriate combination of variables for the means procedure.
Answer

You want to know if there is a relationship between age (measured in years) and the GPA.

You want to know the daily usage of email (measured in hours) among 655 American adults.

You want to know if there is a relationship between sex and the length of walking steps (measured in inches).

You want to know if there is a relationship between race and belief in god. Race is measured by five categories (White, African American, Hispanic, Asian, and Other) and belief in god is measured by two categories (Believe in God and Don't Believe in God).
1 points
Question 15

In a frequency table, a count can be converted to a percentage by dividing it by the total number of responses and multiplying by
Answer

100

50

10

0.1
1 points
Question 16

Suppose that in a scatterplot analysis you find the dots widely spread in the grid. In this case, the relationship between the two variables is most likely to be:
Answer

Very strong

Somewhat strong

weak

any one of the above.
1 points
Question 17

In scatterplots, points that are far removed from the rest are called
Answer

outliers

unusual extremes.

statistically significant.

sunflower cases.
1 points
Question 18

Suppose that you want to measure a person's hearing ability by good, average, and poor. In this case,
Answer

A person's hearing ability is called a theoretical variable.

A person's hearing ability is called an empirical concept.

Good, average, and poor are the attributes or properties of a person's hearing ability.

None of the above.
1 points
Question 19

You want to examine a relationship between college year (freshman, sophomore, junior, senior) and GPA among 250 UMSL students. Which analysis would you use?
Answer

Frequency table

plotting

means procedure

bar chart

crosstabulation
1 points
Question 20

When respondents in a survey provide "I don't know", this response category
Answer

is the same as no response.

may or may not be treated as missing values.

is always categorized as missing values.

is the same as NAP.
1 points
Question 21

According to the textbook, the GSS data is based on
Answer

a judgment sample.

a questionnaire survey.

a random sample of the US population.

a nonrandom-digit telephone survey.
1 points
Question 22

What is the level of measurement of the variable, amount of tea consumed per day (None=0; 1 cup =1; 2-3 cups=2; 4-5 cups=3; more than 5 cups =4 )?
Answer

Nominal

Ordinal

interval

Ratio
1 points
Question 23

Your heating bill increases as the temperature goes down. In this case, there is a _______ relationship between the two variables.
Answer

positive

negative

dependent

depends on a situation
1 points
Question 24

In Frequency distribution, valid responses include
Answer

people who gave responses such as NAP, DK, Refused, and NA.

people who gave answers.

people who gave appropriate answers.

people who participated in a given survey.
1 points
Question 25

When you wish to add one more variable to your crosstabulation of two variables, the third variable is known as the
Answer

multivariate analysis

column variable

row variable

control variable
1 points
Question 26

The variable that is thought to be influenced by another variable is called
Answer

categorical variable

dependent variable

independent variable

controlled variable
1 points
Question 27

You want to know if there is a relationship between miles driven per week and car type (such as 4-dr sedan, SUV, minivan, truck). Which analysis would you use?
Answer

Frequency table

Histogram analysis

means procedure

crosstabulation
1 points
Question 28

You want to examine a relationship between marital happiness (coded 1=very happy; 2=pretty happy; and 3=not too happy) and hours of television watched per day using GSS data. Which analysis would you use?
Answer

Frequency table

plotting

means procedure

crosstabulation
1 points
Question 29

What is the level of measurement of the variable, social class (measured in categories of "upper," "middle" and "lower")?
Answer

Nominal

Ordinal

interval

Ratio
1 points
Question 30

What is the level of measurement of the variable, number of children a woman has in her lifetime?
Answer

Nominal

Ordinal

interval

Ratio
1 points
 
#2
Q32. What is the level of measurement of the variable, favorite type of music (rock, rap, country, classical, opera, other)?

a. Nominal
b. Ordinal
c. Interval
d. Ratio

Q33. From your analysis you found that people who are happier in life are more educated than people who are not too happy. In this case, there is a _____ relationship between happiness and education.

a. positive
b. negative
c. nonlinear
d. depends on a situation

Q34. In a scatterplot analysis, ____ variable is the one to be plotted on the vertical axis (y axis).

a. independent
b. dependent
c. control
d. categorical

Q35. Quartiles refer to:

a. the number that splits the sample into three equal parts.
b. the number that splits the sample into five equal parts.
c. the 25th, 50th, and 75th percentiles.
d. the 5th, 25th, 50th, 75th percentiles.


Q37. The graphical display such as histograms and bar charts

a. Both displays give accurate view of the distribution of values.
b. Both displays give useful view of the distribution of values and it is up to one's preference which one to choose.
c. The histogram gives more accurate view of the distribution of values because the range of values is plotted on a numerical scale that has equal distance between them (= ratio scale).
d. The histogram is not on the equal scale and it may not convey the shape of the actual distribution of the data.

Q39. The Frequencies procedure gives a breakdown of how many cases and what percentage of the respondents gave each response.

a. True
b. False

Q40. For variable "happiness in life, (Very Happy=1; Happy=2; Somewhat Happy=3; Not too Happy=4)", the mode, median, and the mean are all appropriate measures of central tendency.

a. True
b. False

Q41. A scatterplot is a graphic tool used to display the relationship between two variables measured at the _____ level.

a. nominal or ordinal
b. nominal/ordinal on the one hand and interval/ratio on the other.
c. nominal or categorical
d. interval or ratio

Q42. When the variance is 0, it means that all of the cases have the same value.

a. True
b. False

Q44. Indicate the combination of variables below for which scatterplot analysis is appropriate.

a. age of purchasers and different brands of a product (such as different brands of beer)
b. race of purchasers (White, African American, and Other) and different brands of a product
c. number of purchasers and different brands of a product
d. age of purchasers and the total amount of purchases per year

Q46. The variable that is thought to influence another variable is called

a. categorical variable
b. dependent variable
c. independent variable
d. controlled variable

Q47. A recent survey asked the question: "How safe do you think is your money in a saving and loan?" with the following answer categories: 1=very safe, 2=somewhat safe, 3=not very safe, 4=not at all safe, and 5=not sure. The numbers such as 1, 2 ... 5 are called

a. values
b. properties or attributes of the variable in question
c. nominal
d. scale

Q48. You are curious about how one's zodiac sign may be related to happiness in life, daily hours of television watched, marital status, number of siblings, and favorite type of music. Tell the number of variables mentioned.

a. one
b. two
c. three
d. four
e. five
f. six
g. seven
h. eight

Q49. You want to examine a relationship between favorite holiday (Christmas=1; Thanksgiving=2; Easter=3; July 4th=4; Other=5) and sex. Indicate the most appropriate type of analysis you would use from the following choices:

a. boxplots
b. Means procedure
c. Crosstabulation
d. Scatterplot

Q50. Boxplots:

a. are similar to crosstabulation but show many more data values.
b. display the median and variability of the data.
c. display the quartiles and the location of the mean value.
d. combine a frequency table and histogram.

Q51. When the mean value is much larger than the median value for a given variable and you want to select one best measure of central tendency, you need

a. to use the median instead of the mean because the median values are not influenced as much as the mean by the presence of extreme values.
b. to use either the mean or the median.
c. to use the mean instead of the median because the mean can better measure what is typical.
d. to present the mode so as to avoid possible confusion over the differences between the mean and the median.

Q52. Suppose you examined a relationship between sex (male=1, female=2) and weekly library use (once or less =1, more than once =2) in a crosstabulation analysis. If there is no relationship between the two variables, then, your crosstabulation should show

a. same or similar cell counts
b. same or similar column percentages across each row
c. same or similar row counts
d. it depends on a situation

Q53. A scatterplot analysis consists of an X axis (the horizontal axis), a Y axis (the vertical axis), and a series of dots. Each dot on the scatterplot represents one observation from a data set showing its X and Y values.

a.True
b. False
c. It depends on a situation.

Q54. What is the level of measurement of the variable, expression of emotions (such as anger, sadness, joy, disgust, fear, surprise etc.)?

a. Nominal
b. Ordinal
c. Interval
d. Ratio

Q55. When two variables in a crosstabulation consist of independent and dependent variables, you want to place the dependent variable as the:

a. marginal variable
b. control variable
c. row variable
d. column variable

Q56. For the variable "Systolic blood pressure", which of the following measures of central tendency is appropriate?

a. Mode and Median
b. Median
c. Mean
d. Median and Mean

Q57. When the distribution of data values is symmetrical, then

a. the mean is equal to the standard deviation
b. the mean is equal to the mode and the median
c. the median is smaller than the mean
d. the mean is smaller than the mean

Q59. In a crosstabulation, the number of responses for each combination of the two variables in the table is called

a. cell count
b. column count
c. row count
d. marginal total
 
#4
ans.

1.b
2a
3b
4d
5b
6a
7c
8c
9c
10c
11b
12b
13e
14a
15a
16c
17a
18c
19c
20a
21c
22c
23b
24c
25d
26b
27d
28c
29b
30d
31c
32a
33a
34b
35c
36c
37d
38e
39a
40a
41d
42b
43b
44d
45d
46c
47a
48g
49c
50c
51a
52c
53a
54a
55c
56c
57a
58b
59b
60a



CANT POST MY WORK, THEY ARE JUST THOUGHTS WHEN IM CHOOSING! tHANKS!
 

Dason

Ambassador to the humans
#5
1.b
2a
3b
4d
5b
6a
7c
8c
9c
10c
11b
12b
13e
14a
15a
16c
17a
18c
19c
20a
21c
22c
23b
24c
25d
26b
27d
28c
29b
30d
31c
32a
33a
34b
35c
36c
37d
38e
39a
40a
41d
42b
43b
44d
45d
46c
47a
48g
49c
50c
51a
52c
53a
54a
55c
56c
57a
58b
59b
60a

$10 please