Dr. Shue conducted an experiment to examine whether wearing extremely high heels

Question

Dr. Shue conducted an experiment to examine whether wearing extremely high heels have a significant effect on long-term foot health. She compared the number of lifetime foot injuries and diseases of those who wear heels at least 4 inches high more than 4 days a week to those in the general population. She reported her results as follows: z (N = 250) = 3.76, p < .05. Use this information to answer the following questions:

(a) State the null hypothesis (in words).

(b) What did Dr. Shue conclude about the influence of wearing extremely high heels? Interpret her results in plain (non-techical) language.

(c) What is the probability that Dr. Shue committed a Type I error?

Explanation / Answer

a) null hypothesis: Ho: there is no effect on  number of lifetime foot injuries and diseases of those who wear heels at least 4 inches high more than 4 days a week to those in the general population.

b)

as p value is lss than 0.05 level ; threfore he reject null hypothesis

he has sufficient evidence to conclude that number of lifetime foot injuries and diseases are higher for those who wear heels at least 4 inches high more than 4 days a week to those in the general population.

c)  probability that Dr. Shue committed a Type I error =0.05

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