A survey asked, "Do you currently have tattoos on your body?" Of the 1239 males surveyed,...

A survey asked, "Do you currently have tattoos on your body?" Of the 1239 males surveyed, 179 responded that they had at least one tattoo. Of the 1057 females surveyed, 141 responded that they had at least one tattoo. Test if the male population proportion is greater in having tattoos at a 95 % confidence level.

A. What is the test statistics?

B. What is the critical value?

C. What is the test conclusion?

D. What is the left boundary of the 95% C.I. of the group proportion difference?

Solutions

Expert Solution

A) to C)

D) Left = -0.017

orchestra answered 1 year ago

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