A random sample of 16 pharmacy customers showed the waiting times below (in minutes).111925231921Click here for the Excel Data FileThe 90% confidence interval17172417to16141815Find a 90 percent confidence interval for μ, assuming that the sample is from a normal population. (Round your standard deviationanswer to 4 decimal places and t-value to 3 decimal places. Round your answers to 3 decimal places.)2011

The waiting time of 16 sampled customers is given as:

Answered: A random sample of 16 pharmacy…

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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You are interested in finding a 98% confidence interval for the average commute that non-residential students have to their college. The data below show the number of commute miles for 11 randomly selected non-residential college students. Round answers to 3 decimal places where possible. 18 18 27 17 15 7 11 15 9 12 19 a. To compute the confidence interval use a ? z or t distribution. b. With 98% confidence the population mean commute for non-residential college students is between ___ and ____miles. c. If many groups of 11 randomly selected non-residential college students are surveyed, then a different confidence interval would be produced from each group. About what ____ percent of these confidence intervals will contain the true population mean number of commute miles and about ____ percent will not contain the true population mean number of commute miles.
suppose you obtained a mean of $167 spent on transportation and a standard deviation of $40. Calculate a 95% confidence interval for the mean and select the values that come closest to those that would fill the spaces in the following interpretation: we can be 95% confident that they mean amount of money spent on transportation lies between _____ and _____ .
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Construct a 90% confidence interval for the mean when x̅=50 and there are 31 observations. Suppose σ=7. What is the confidence interval?
Please fill in the empty boxes to B & C
You are interested in finding a 90% confidence interval for the mean number of visits for physical therapy patients. The data below show the number of visits for 15 randomly selected physical therapy patients. Round answers to 3 decimal places where possible. 8 15 5 18 9 28 5 14 23 25 18 20 23 9 16 a. To compute the confidence interval use a distribution. b. With 90% confidence the population mean number of visits per physical therapy patient is between and visits. c. If many groups of 15 randomly selected physical therapy patients are studied, then a different confidence interval would be produced from each group. About ____percent of these confidence intervals will contain the true population mean number of visits per patient and about ____percent will not contain the true population mean number of visits per patient.
1. You are interested in finding a 95% confidence interval for the average commute that non-residential students have to their college. The data below show the number of commute miles for 10 randomly selected non-residential college students. Round answers to 3 decimal places where possible. 17 14 23 20 27 27 22 12 7 23 a. To compute the confidence interval use a distribution. b. With 95% confidence the population mean commute for non-residential college students is between and miles. Please state what command(s) you typed into your calculator. MIDDLESEX c. If many groups of 10 randomly selected non-residential college students are surveyed, then a different confidence interval would be produced percent of these confidence intervals will from each group. About contain the true population mean number of commute miles and about percent will not contain the true population mean number of
If the problem below is given: Suppose that a garage samples 20 customers. They find the average time for there oil change is 4521 miles and a standard deviation of 1234. Find a 90% confidence interval of the true mean. Which t value would you use?A.1.645B.1.734C.1.729D.1.725
im trying to use excel, im lost. help a. Determine the 95% confidence interval for the mean predicted when x= 7 b. Determine the 95% prediction interval for an individual predicted when x= 7. x y 5 13 3 15 6 7 3 12 4 13 4 11 6 9 8 5
Find z given a 94% confidence interval and a= 0.06. z = ?
Use the t-table or any statistical tool and report the t-score that you multiple by the standard error to form the margin of error for a 95% confidence interval for a mean with 5 observations. a. 2.132 b. 2.776 c. 2.015 d. 2.571
You are interested in finding a 90% confidence interval for the average commute that non-residential students have to their college. The data below show the number of commute miles for 14 randomly selected non-residential college students. Round answers to 3 decimal places where possible. 5 8 11 10 12 19 24 6 26 10 26 10 26 15 a. To compute the confidence interval use a distribution. b. With 90% confidence the population mean commute for non-residential college students is between and miles. c. If many groups of 14 randomly selected non-residential college students are surveyed, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population mean number of commute miles and about percent will not contain the true population mean number of commute miles.

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