Consider the following hypothesis test:

H0:20

Ha:< 20

A sample of 50 provided a sample mean of 19.4. The population standard deviation is 2.

a.Compute the value of the test statistic (to 2 decimals). If your answer is negative, use minus "-" sign

b.What is thep-value (to 3 decimals)?

c.Using= .05, can it be concluded that the population mean is less than 20?

Select

Yes

No

Item 3

d.Using= .05, what is the critical value for the test statistic? If your answer is negative, use minus "-" sign

e.State the rejection rule: RejectH0ifzisSelect

greater than or equal to

greater than

less than or equal to

less than

equal to

not equal to

Item 5

the critical value.

f.Using= .05, can it be concluded that the population mean is less than 20?

Select

Yes

No