The figure to the right shows the results of a survey in which 1500 college graduates from the year 2016 were asked questions about employment. Employment College students' responses to questions about employment Construct 95% confidence intervals for the population proportion of college students who gave each response. Expect to stay at first employer for 3 or more years Completed an apprenticeship or intemship 71% 68% Employed in field of study 63% Feel underemployed 48% Prefer to work for a large company 16% The 95% confidence interval for the proportion of college students that expect to stay at their first employer for 3 or more years is ( D (Round to three decimal places as needed.)

please show working out. Thank you    A University has put in place a 4 week course of lunchtime exercise breaks for its staff to see if its employees’ job satisfaction can be improved. To measure the effectiveness of this program, 10 randomly selected staff in the program were surveyed about their feelings at work, once at the start of the program and again after the course. Higher scores indicate higher satisfaction. The job satisfaction index results for this group were:    Staff 1 2 3 4 5 6 7 8 9 10 Before 34 28 29 45 26 27 24 15 15 27 After 33 31 36 46 32 34 28 26 19 37 Use a test of significance at 5% level to decide if the program has improved the employee’s job satisfaction on average. Show your graphical evidence, if needed, and clear conclusion.   - please sketch the curve as well. thank you

you want to find out the percent of people who use an iPhone so you survey 120 random adults of whom 57 use an iPhone. what is the 95% confidence interval for P the put portion of all adults who use iPhone

Construct a 95% confidence interval for p1 - p2 for a survey that finds 30% of 240 males and 41% of 200 females are opposed to the death penalty. Group of answer choices a.(-0.200, -0.021) b.(-1.532, 1.342) c.(-1.324, 1.512) d.(-0.561, 0.651)