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H0: mean =7 H1: mean >7 A test is preformed with a sample of size 36....

H0: mean =7

H1: mean >7

A test is preformed with a sample of size 36. The sample mean was 2.88 and the population standard deviation is 18. Assume that the population is approximately normal. Use the TI-84 PLUS calculator to compute the P-value. Write only a number as your answer.

Math   Statistics-And-Probability   
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Answer #1

Given that, sample size (n) = 36

sample mean = 2.88

population standard deviation = 18

The null and alternative hypotheses are,

Test statistic is,

Since it is right tailed test,

p-value=P(Z > -1.3733)= P(Z < 1.3733) = 0.9152

=> p-value = 0.9152

TI-83 plus calculator output is shown in below image:

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