Suppose IQ scores were obtained for 20 randomly selected sets of couples. The 20 pairs of measurements yield x = 96.64, y = 96.4, r=0.809, P-value = 0.000, and y = 13.57 +0.86x, where x represents the IQ score of the husband. Find the best predicted value of y given that the husband has an IQ of 90? Use a significance level of 0.05. A Click the icon to view the critical values of the Pearson correlation coefficient r. The best predicted value of y is (Round to two decimal places as needed.)

Use the sample data and confidence level given below to complete parts (a) through (d).

A research institute poil asked respondents if they felt vulnerable to identity theft. In the poil. n=1089 and x=570 who said ''yes. ''Use a 99% confidence level.

Click the icon to view a tabie of z scores.

(a) Find the best point estimate of the population proportion p.

a. find the best point estimate of the population proportion p.(Round to three decimal places as needed.)

b. Identify the value of the margin of error(Round to three decimal places as needed.)

c. Construct the confidence interval(Round to three decimal places as needed.)

d. write a ststement that correctly inteprets the confidence interval(Round to three decimal places as needed.)

Here are summary statistics for randomly selected weights of newborn girls: n = 36, x = 3222.2 g, s = 686.7 g. Use a confidence level of 99% to complete parts (a)

through (d) below.

a. Identify the critical value ta/2 used for finding the margin of error.

4/2=0

(Round to two decimal places as needed.)

b. Find the margin of error.

E= 0 g

(Round to one decimal place as needed.)

c. Find the confidence interval estimate of p.

(Round to one decimal place as needed.)

d. Write a brief statement that interprets the confidence interval. Choose the correct answer below.