A psychiatrist is interested in finding a 90% confidence interval for the tics per hour exhibited bychildren with Tourette syndrome. The data below show the tics in an observed hour for 14randomly selected children with Tourette syndrome. Round answers to 3 decimal places wherepossible.8.9.39.101142121210a. To compute the confidence interval use adistribution.b. With 90% confidence the population mean number of tics per hour that children with Tourettesyndrome exhibit is betweenandc. If many groups of 14 randomly selected children with Tourette syndrome are observed, then adifferent confidence interval would be produced from each group. Aboutpercent ofthese confidence intervals will contain the true population mean number of tics per hour andaboutpercent will not contain the true population mean number of tics per hour.

Given data: Sample size = 14 Confidence level =90%

Answered: A psychiatrist is interested in finding…

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 mean number of visits for physical therapy patients. The data below show the number of visits for 12 randomly selected physical therapy patients. Round answers to 3 decimal places where possible. 25 14 23 8 6 15 18 5 8 17 9 7 a. To compute the confidence interval use a ? z t Correct distribution. b. With 98% confidence the population mean number of visits per physical therapy patient is between blank and blank visits. c. If many groups of 12 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.
QUIZt! Directions: Read and analyze the following problems. Write your answers on a sheet of раper. 1. Write the confidence interval for u given the population standard deviation o, the sample size n, and the confidence level C. Assume that the population is normally distributed. a. o = 3, n = 9, C = 90% b. =27, o = 5, n= 65, C=99% C. = 105, o = 24, n= 100, C= 80.30% d. x=1206, o = 143, n = 10, C= 78.14% 2. Given a random sample with size 39 taken from a normally distributed population or 200 members, having a sample mean of 66 and a population standard deviation of 11. Construct a 96% confidence interval to estimate the population mean.
You are interested in finding a 95% confidence interval for the mean number of visits for physical therapy patients. The data below show the number of visits for 13 randomly selected physical therapy patients. Round answers to 3 decimal places where possible. 27 19 24 14 6 18 25 5 23 28 12 23 20 a. To compute the confidence interval use a ? t distribution. b. With 95% confidence the population mean number of visits per physical therapy patient is between___and ____visits. c. If many groups of 13 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.
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.
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You do a study of hypnotherapy to determine how effective it is in increasing the number of hours of sleep subjects get each night. You measure hours of sleep for 12 subjects with the following results. Construct a 90% confidence interval for the mean number of hours slept for the population (assumed normal) from which you took the data. (Give your answer rounded to the nearest 4 decimal places if necessary.) {7.8, 8.9, 9.5, 11.2, 11.5, 8.3, 11.8, 8.4, 8, 8.4, 10.1, 10.3} (?,? )
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The heart rates for a group of 17 students taking a final exam are given below. Assume heart rates are normally distributed. Use a TI-83, TI-83 plus, or TI-84 calculator to find the 95% confidence interval for the true population mean. Round your answers to two decimal places and use increasing order. Beats per minute 92 101 93 89 93 89 92 95 86 93 96 93 96 87 94 97 101
Section b

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