In 1955, Life Magazine reported that a 25-year-old mother of three worked (on average) an 80 hour week. Recently, many groups have been studying whether or not the women's movement has, in fact, resulted in an increase in the average work week forwomen (combining employment and at-home work). Suppose a study was done to determine if the average work week has increased. 77 women were surveyed with the following results. The sample average was 83; the sample standard deviation was 1o.Does it appear that the average work week has increased for women at the 5% level?Note: If you are using a Student's t-distribution for the problem, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.)O Part (a)O Part (b)+ Part (c)O Part (d)State the distribution to use for the test. (Enter your answer in the form z or tor Where df is the degrees of freedom.)2.632+ Part (e)+ Part (f)O Part (g)O Part (h)O Part (i)Construct a 95% confidence interval for the true mean. Sketch the graph of the situation. Label the point estimate and the lower and upper bounds of the confidence interval. (Round your lower and upper bounds to two decimal places.)95% C.I.Additional Materials

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Math

Statistics

State the distribution to use for the test (Enter your answer in the form z or tar where af is the degrees of freedom.) 2.632 O Part (e) O Part () O Part (g) O Part (h) O Part (i) Construct a 95% confidence interval for the true mean. Sketch the graph of the situation. Label the point estimate and the lower and upper bounds of the confidence interval. (Rou 95% C.I.

State the distribution to use for the test (Enter your answer in the form z or tar where af is the degrees of freedom.) 2.632 O Part (e) O Part () O Part (g) O Part (h) O Part (i) Construct a 95% confidence interval for the true mean. Sketch the graph of the situation. Label the point estimate and the lower and upper bounds of the confidence interval. (Rou 95% C.I.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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