Question

Question 10 According to the website www.collegedrinkingprevention.gov, "About 25 Type numbers in the boxes. percent of college students report academic consequences of their drinking by Part 1: 5 points including missing class, falling behind, doing poorly on exams or papers, and w Part 2: 5 points receiving lower grades overall." A statistics student is curious about drinking 10 points habits of students at his college. He wants to estimate the mean number of alcoholic drinks consumed each week by students at his college. He plans to use a 90% confidence interval. He surveys a random sample of 50 students. The sample mean is 3.90 alcoholic drinks per week. The sample standard deviation is 3.51 drinks. Construct the 90% confidence interval to estimate the average number of alcoholic drinks consumed each week by students at this college. Your answer should be rounded to 2 decimal places.

Answer 1

n = 50, z = 3.90, 8= 3.51 the average number x + 1.645X o 90 of confidence entre und for of alcoholic drinks consumed è (à 11:645x4) (3.90 1.645* 357) - 3:08, 14:42) 30% t 1.645 x 305) V 50 3. 8 4.72