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Claim about the population mean

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Use a? t-test to test the claim about the population mean μ at the given level of significance α using the given sample statistics. Assume the population is normally distributed.

?Claim:

μ≠28

α=0.05

Sample? statistics: x =31.2

s=4.3

n=13

What is the value of the standardized test? statistic?

A: 2.68

What is the? P-value of the test? statistic?

A: 0.020

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

A: Reject HO: There is enough evidence to support the claim

Reference no: EM132248376

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