Using Megastat: I selected the following:

Hypothesis Test: Mean vs. Hypothesized Value

Typed in from A-1 to A3, x-bar (295.5), sd (5.2), and n (100).

Hypothesized mean: (300) Alternative: (not equal)

Selected z-test.

I go to run the test and get a triangular error message from megastat

n must be > = 2.

I tried help, no success. So manually I try:

Step I.

Calculate the area under the curve, using alpha .05

Two tail test: .05/2=.025

The area under the curve is .025-.5=.4750. (referencing to Z table)

Critical value for z= +/- 1.96

Step II

P-value= .5 -.4750

p-value= .025

*noting that this a two-tail test I multiply .025*2 to give me .05

p-value is defined as the level of significance where the calculated value of the test statistic is exactly the same as a critical value. It is the lowest level of significance at which H sub naught can be rejected.

The mulitple choices provided are:

The P-value for the above test is,

Greater than .10

Between .05 and .10

Between .01 and .05

Less than .01

I selected Between .01 and .05

though I am not sure as to the answers provided as The P-value for the above test is,

is to me means singular, if you are to imply more than one the word are should be stated.

I believe I did this correct, anybody care to read and comment on my response?