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Consider the following hypothesis test: H_0: µ >= 80 H_a: µ < 80 A sample of...

Consider the following hypothesis test: H_0: µ >= 80 H_a: µ < 80

A sample of size 100 provided a sample mean of 78.5. The population standard deviation is 12.

a) Compute the value of the test statistic

b) What is the associated p-value?

c) Using α = 0.01, what is your conclusion? Enter either "reject" or "fail to reject" without the quotes for what to do with the null hypothesis.

math   Statistics-And-Probability   
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Answer #1

Page solution : Given that , u=80 n = 100 Ž = 78.5 6 = 12 Ho : M = 80 Hai uc 80 This is Left -tailed test. Test = statistic,

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