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Homework answers / question archive / The mean height of females in a certain country is 66 inches with a standard deviation of 4 inches

a standard deviation of 4 inches. Find the height that correspond to a z score of 1. Round your answer to two decimal places, if needed.

-Gender Selection ProblemA company claims when parents use their gender selection method, the chances of having a girl will increase. Assume boy and girl births are equally likely so the proportion of girl births in any population is 50%. In a clinical trial of 121 births for parents who used the gender selection method, 76 were girls.

State the claim, null, and alternative hypothesis.

Claim:

p [">", "<", "=", "≠"] 0.5

HO:

p [">", "=", "≠", "<"] 0.5

H1:

p ["=", "≠", "<", ">"] 0.5

Determine the p-value.

Round your answer to 4 decimal places.

Using a significance level of 0.01, state the final conclusion regarding the claim.

["Fail to reject", "Reject"] the HO since the p-value is

["greater than", "less than"] the significance level α