The following 5 questions are based on this information.

A research analyst believes that average back-to-school spending is more than a trade group's prediction of $606.

She decides to conduct a test based on a random sample of 20 households from which she calculates the sample mean as $622. She also believes that the random variable, back-to-school spending (denoted byX), is normally distributed with a population standard deviation (

) of $65.

Specify the null and alternative hypotheses.

Select one:

a.H(0): 606 Versus H(a): >606

b.H(0): 606 Versus H(a): <606

The standard error (SE) ofX

Xis

Select one:

a.139.08

b.14.53

c.31.1

d.3.25

The test statistics value is

Select one:

a.0.12

b.4.92

c.0.51

d.1.10

The p-value is given by

Select one:

a.0.08

b.0.31

c.0.14

d.0

At =0.1 and using the p-value

Select one:

a.We reject H(0) in favor of H(a)

b.We do not reject H(0)