180 students were asked to randomly pick one of the numbers 1,
2, 3, 4, 5, 6, 7, 8, 9, 10. The number 7 was picked by 61
students.
a) For the sample, calculate the proportion of students who
picked 7. (Round the answer to three decimal places.)
(b) Calculate the standard error for this sample proportion.
(Round the answer to three decimal places.)
(c) Calculate a 90% confidence interval for the population
proportion. (Round the answer to three decimal...