How many rounds of golf do those physicians who play golf play per year? A survey of 12 physiciansrevealed the following numbers:6, 41, 15, 4, 35, 41,21, 14, 18, 27, 13, 50Estimate with 93% confidence the mean number of rounds played per year by physicians, assuming thatthe population is normally distributed with a standard deviation of 6.Note: For each confidence interval, enter your answer in the form (LCL, UCL). You must include theparentheses and the comma betwpen the confidence limits.Confidence Interval =

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Answered: How many rounds of golf do those…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Suppose that the average number of Facebook friends users have is normally distributed with a mean of 145 and a standard deviation of about 57. Assume forty-nine individuals are randomly chosen. Answer the following questions. Round all answers to 4 decimal places where possible. Find the first quartile for the average number of Facebook friends.
The standard deviation and the mean of 25 students scores are 10 and 38, respectively. Construct a 99% confidence interval.
(in hours): 7, 6, 7, 8.5, 8, 9, 6.5 a. Find the mean, median, mode and standard deviation for their hours of sleep. b. Create a 99% confidence interval for the mean amount of hours they slept.
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You measure 38 textbooks' weights, and find they have a mean weight of 58 ounces. Assume the population standard deviation is 3.9 ounces. Based on this, construct a 90% confidence interval for the true population mean textbook weight .
A developmental psychologist is interested in studying how long babies gaze at a photograph of a human face. To test this question, she shows a picture to a sample of six babies and records the length of their gaze in seconds. The data are as follows: 12, 17, 18, 20, 20, 29. Calculate the mean, median, mode, range, variance and standard deviation for the sample.
Please answer all. Thank you. A national random sample of 20 NCAE Scores from 2010 is listed below. 29,26,13,23,23,25,17,22,17,19 12,26,30,30,18,14,12,26,17,18 Calculate the 95 percent confidence interval for the mean NCAE score if the sample standard deviation is about 5.9407. A.) between 18.22 and 23.48 B.) between 18.07 and 23.63 C.) between negative infinity and 23.15 D.) between negative infinity and 23.05 The value of z selected for constructing a given confidence interval is called A.) confidence B.) error C.) student D.) critical value
One researcher collected a sample of expenses for advertisement from 5 companies as follows: 50, 60, 55, 58, 72 The standard deviation is
The questions are in the screenshot. Please answer each question separately.
Assume that distances people driving to work are normally distributed. In a random sample of five people, the mean driving distance to work was 23 miles and the standard deviation was 6 miles. What is the length of the 95% confidence interval for the mean driving distance to work. Round to the nearest mile.
Suppose that the average number of Facebook friends users have is normally distributed with a mean of 136 and a standard deviation of about 45. Assume forty-two individuals are randomly chosen. Answer the following questions. Round all answers to 4 decimal places where possible. Find the third quartile for the average number of Facebook friends
We asked 41 people to report the number of cars they've ever owned. The results are a mean of 4.6 and a standard deviation of 1.3. Construct a 80% confidence interval.

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