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PLEASE HELP!!! In a large marathon, runners start the race in stages. Sophia started in group E and ran at a rate of 4.8 miles p
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Answer:
We reject the null hypothesis.
Step-by-step explanation:
We are given the following information in the question:
Sample size, n = 71
Population variance is known.
Level of significance, α = 0.08
The null and alternate hypothesis are:
We use one-tailed z test to perform this hypothesis.
Formula:
Now,
Since,
We fail to accept the null hypothesis and reject it and accept the alternate hypothesis.