Use at-test to test the claim about the population mean mu

at the given level of significance alpha

using the given sample statistics. Assume the population is normally distributed.

Claim: mu

equals

=52 comma 400

52,400; alpha

equals

=0.10

0.10Samplestatistics: x overbar

xequals

=51 comma 979

51,979, sequals

=2200

2200, nequals

=15

15

LOADING...

Click the icon to view thet-distribution table.

What are the null and alternativehypotheses? Choose the correct answer below.

A.

H0: mu

not equals

52 comma 400

52,400

Ha: mu

equals

=52 comma 400

52,400

B.

H0: mu

less than or equals

52 comma 400

52,400

Ha: mu

greater than

>52 comma 400

52,400

C.

H0: mu

equals

=52 comma 400

52,400

Ha: mu

not equals

52 comma 400

52,400

D.

H0: mu

greater than or equals

52 comma 400

52,400

Ha: mu

less than

<52 comma 400

52,400

What is the value of the standardized teststatistic?

The standardized test statistic is

nothing

. (Round to two decimal places asneeded.)

Whatis(are) the criticalvalue(s)?

The criticalvalue(s) is(are)

nothing

.

(Round to three decimal places as needed. Use a comma to separate answers asneeded.)

Decide whether to reject or fail to reject the null hypothesis.

A.

Reject

Reject Upper H 0

H0. There is not

isnot enough evidence to reject the claim.

B.

Reject

Reject Upper H 0

H0. There is

is enough evidence to reject the claim.

C.

Fail to reject

Failtoreject Upper H 0

H0. There is

is enough evidence to reject the claim.

D.

Fail to reject

Failtoreject Upper H 0

H0. There is not

isnot enough evidence to reject the claim.