Author Question: As a manufacturer of guitars, a major corporation wants to estimate the proportion of guitar players ... (Read 119 times)

NguyenJ · **on:** Jun 24, 2018

As a manufacturer of guitars, a major corporation wants to estimate the proportion of guitar players who are right-handed. How many golfers must be surveyed if they want to be within 0.02, with a 95 confidence?
a. Assume that there is no prior information that could be used as an estimate of p.
b. Assume that the manufacturer has an estimate of p found from a previous study, which suggests that 75 of guitar players are right-handed.

Question 2

If both variables are ordinal, the value of the Spearman rank correlation coefficient is equal to the value of Pearson's correlation coefficient.
Indicate whether the statement is true or false