# type 1 type 2 error

1. ### When 'not' to use MANOVA?

Hey! This is about my PhD thesis where I am trying to see the pattern of memory deficit among different types of hypothyroidism. I have used a between subject group design with 1 IV with four levels. Thus, I have 4 four groups which are: Subclinical Hypothyroid group N= 14 Overt Hypothyroid...
2. ### Calculate type 2 error using one data file

I am a bit confused on how to calculate type 2 error to check whether the sample data I am using is sufficient. I have a data file that I have used to build a machine learning model. This data file consists of 500 entries describing information about entities and the funding these entities have...
3. ### Calculating the size of Type 1 error, Type 2 error and power of the test

Let X have a binomial distribution with parameter n=5 and P\in [p:p=\frac{1}{4},\frac{1}{2}]. The null hypothesis H_{0}:P=\frac{1}{4} is rejected, and The alternative hypothesis H_a:P=\frac{1}{2} is accepted. If the observed value of X_1, a random sample of size one, is less than or equal...
4. ### Statistics Final Exam Question

Due to some gray area in a TA's grading, I am going to review my statistics final with my professor on Friday. There's some possibility of a grade change. One of the questions I'm most anxious about, the final question, went essentially like this: "Tommy finds a deck of cards, but he is not...
5. ### Standard deviation as a percentage

Hi i'm new here and have a really quick question, How do you interpret a standard deviation given as a percentage (in this case 20%)? I need to use the variance in further calculations (working out type i and ii errors), the data is normally distributed, and the sample size is 30, i have...
6. ### type 1 and 2 error easy help please

Lifetime of a certain type of batteries is said to be Normally distributed with a known standard deviation of 5 hours. The manufacturer claims that the average lifetime of the batteries is 125 hours. A sample of size 100 is taken from the population. An investigator wishes to test the...