1. A genetic experiment with peas resulted in one sampling of offspring that consisted of 442 green peas and 156 yellow peas.

a. Construct a 95% confidence interval. Express the percentages in decimal form _____< p < _____ (Round to three decimal places as needed)

b. Given that the percentage of offspring yellow peas is not 25%, do the results contradict expectations? A. No, the confidence interval includes 0.25, so the true percentage could easily equal 25% B. Yes, confidence interval does not include 0.25, so the true percentage could nto equal 25%

2. Salaries of 45 college graduates who took a statistics course in college have a mean, x, of $69,900. Assuming a standard deviation, , of $11,874, construct a 90% confidence interval for estimating the population mean .

$_____ < < $ ______ (Round to the nearest integer as needed)