Question

A random sample of 10 observations was drawn from a large population. These are:7, 12. 8,4.9,3, 4, 9, 5, 2

Test to determine if we can infer at the 5% significance level that the population mean is not equal to 5.

command :menu analyze →compare means →one sample t test →

test variable  

test value

options:confidence interval

Must have process

Answer 1

First we set up the null hypothesis

H0: population mean=5

against

H1:population mean not equal to 5

Since p-value>0.05, therefore null hypothesis is accepted. It is infered at 5% level of significance that population mean not equal to 5 is rejected.