1)The claim is that the proportion of peas with yellow pods is equal to 0.25 (or 25%). The sample statistics from one experiment include 480 peas with 97

of them having yellow pods. Find the value of the test statistic. Round to two decimal places as needed.

2)Assume that the significance level is =0.1. Use the given information to find the P-value and the critical value(s).

The test statistic of z=1.16 is obtained when testing the claim that p greater than p>0.2. Round to four decimal places as needed.

3) Suppose IQ scores were obtained from randomly selected couples. For 20 such pairs of people, the linear correlation coefficient is 0.896 and the equation of the regression line is y with caret= 0.53+ 1.01x, where x represents the IQ score of the wife. Also, the 20 x values have a mean of 100.73 and the 20 y values have a mean of 102.15. What is the best predicted IQ of the husband, given that the wife has an IQ of 95? Use a significance level of 0.05. Round to two decimal places as needed