Question

Assume that the weight loss for the first month of a diet program varies between 6 pounds and 12 pounds, and is spread evenly over the range of possibilities, so that there is a uniform distribution. Draw a graph to represent this uniform distribution. Find the probability of the given range of pounds lost. Points: 5 26) Find the probability of weight loss between 8.5 pounds and 10 pounds. Show your work below. A B); Graph Use the empirical rule to solve the problem. Show work below with the empirical rule. Points: 5 27) At one college, GPA's are normally distributed with a mean of 2.7 and a standard deviation of 0.6. What percentage of students at the college have a GPA between 2.1 and 3.3? C) 68% D) 99.7% B) 84.13% A) 95% Express the null hypothesis and the alternative hypothesis in symbolic form. Use the correct symbol (H. p. c) for the indicated parameter. Extra work does not need to be shown for this question. Points: 5 28) A cereal company claims that the mean weight of the cereal in its packets is more than 14 oz. Ho H1

i need help with all 3 please . thank you

Answer 1

Graph Anu (6, 12) f(x) fes= 16 6 12 x 1 27) X: GPA'S of students, o at avon au ON(n mean (el) = 2.7 8.D(0)20.6) We have to the probability or students having GPA's between 2-1 and 3-3 1-e, P (2-4<x<3-3) = P(20-2.7 c * 3.3 .-27) calculate = P(-1C251) = 1-2p(2.6-1). = 1 - 2 x 0.15866 i 0.6826 le 68./. of students at the college have. between 2-1 and 3.3 GPA

28 ) The null and atematine Hypothesis is, Hou l = 14 uls H,: el> 14