Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval for a sample of size 171 with 75 successes. Enter your answer as an open-interval (i. e., parentheses) using decimals (not percents) accurate to three decimal places.

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

Can you me find the missing length. i attached an image.

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?