Question: . Post should include a detailed solution and explanation 16. A 95% confidence interval for the MEAN recovery time after a certain major surgery is

. Post should include a detailed solution and explanation

16. A 95% confidence interval for the MEAN recovery time after a certain major surgery is (60, 80) days. a) Find the sample mean used to form the interval. b) Find the margin of error. c) Assume that the population standard devi- ation is 40. Determine the sample size need- ed to create the confidence interval (60, 80) with the margin of error you found in part b

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

Lesson 10 Question 1 A random sample of 100 freshmen students at University Park campus is taken to estimate the percentage of freshmen that have taken a tour of Pattee Library during orientation...

1) Suppose that = 155 and = 20. Find the score 2.2 standard deviations above the mean. 20 5 19 9 19 0 18 5 2) Suppose that = 155 and = 20. Find the score 2.8 standard deviations below the mean. 8 9 9...

1. BST 322 Week 2 Assignment What is the probability of rolling a four in the gambling dice game of craps (given two six sided dice)? What is the probability that a player can roll a four 3 times in...

Table of Contents Introduction. Hypothesis. Methods ..5 148 194714) Results.. Table I Western Governor Township Race by Family History of Heart Disease. Table 3 Analysis of Variance Difference in...

A random sample of size n = 16 from a normal population yield a sample mean of x = 53.7 and standard deviation s = 23.3. (a) Construct and interpret a 95% confidence interval for mean . (b) Suppose...

Elena Modesti Final Statistics Paper Social Statistics Professor Charles 4/24/16 The study of the relationship between different social factors is very important in understanding cause and effect, as...

========================================================================== (Problem 1) A random sample of 12 customers was chosen in a supermarket. The (incomplete) results for their checkout times...

1 (1 point) You own a small storefront retail business and are interested in determining the average amount of money a typical customer spends per visit to your store. You take a random sample over...

Set Student Name: 1. Answer true or false for each part, and if false, explain your answer. a. The point estimate for the population mean, , of an x distribution is x-bar, computed from a random...

1. An aptitude test was given to a random sample of 228 people intending to become data-entry clerks. The results are shown below, where x is the score on a 10-point scale and f is the frequency of...

You are the junior analyst of a firm which wants to invest in a company that in addition to high financial performance is also socially and environmentally responsible. 1. Your manager has given you...

I'm sorry if this is a few questions at once, I just figured it made more sense this way since each question carries on from the last. If you'd prefer I upload them individually I can do that too :)...

Stock Mutual Fund Over three years diversified stock mutual funds earned an average return of 1 1 % , with a standard deviation of 5 . 5 % . Assume that returns were normally distributed across funds...

th 3 Briefly summarize key learning points from the documentary 13th Amendment. Additionally what are the demographics (social characteristics) of today's prisoners? What gender and racial...

Take responsibility for the other persons or others experience of the situation.

Pollution

The fear of making a fool of oneself