Question: Find thez*values based on a standard normal distribution for each of the following. (a) An88%confidence interval for a correlation Round your answer to three decimal

Find thez*values based on a standard normal distribution for each of the following.

(a) An88%confidence interval for a correlation

Round your answer to three decimal places.

(b) A90% confidence interval for a difference in proportions.

Round your answer to three decimal places.

(c) A98% confidence interval for a proportion.

Round your answer to three decimal places.

(2) Consider random samples of size60from a population with proportion0.35. Find the standard error of the distribution of sample proportions.

Round your answer for the standard error to three decimal places.

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