UH MyUH Services | All Campuses x Laulima : Home : Overview x Laulima : Home : Membership X My Home X My Home x * Midterm 3 Fall 2021 - ECON 32 x G (4) What is confidence interval x webassign.net/web/Student/Assignment-Responses/last?dep=28075575 18 DETAILS MY NOTES It is known that 0.75 of all new products introduced in grocery stores fail (are taken off the market) within 2 years. Suppose I am interested in the number of products that will fail in a sample of 65 new products. What is the expected value of this variable? O 48.75 O 40 O 2 O 0.75 What is the standard deviation of this variable (the number of products that will fail in a sample of 65 new products)? O 12.19 O 0.054 O 3.49 O 0.003 Suppose I am interested in the proportion of products that will fail in a sample of 65 new products. What is the expected value of this variable? O 48.75 O 40 O 0.75 O 2 What is the standard deviation of this variable (the proportion of products that will fail in a sample of 65 new products)? O 3.49 O 12.19 O 0.054 O 0.003 19 DETAILS MY NOTES If random samples, each with n = 4 scores, are selected from a normal population with # = 90 and o = 10, then what is the probability of picking a random sample with a sample mean x greater than 110? 1 O Less than 0.0002 O 0.1587 O 0.5