Construct a 95% confidence interval to estimate the population mean when x- 52 and s = 13.6 for the sample sizes below.a) n=20b) n= 35c) n= 64a) The 95% confidence interval for the population mean when n= 20 is from a lower limit of(Round to two decimal places as needed.)to an upper limit ofb) The 95% confidence interval for the population mean when n= 35 is from a lower limit ofto an upper limit of(Round to two decimal places as needed.)c) The 95% confidence interval for the population mean when n= 64 is from a lower limit of(Round to two decimal places as needed.)to an upper limit ofHelp me solve thisView an exampleAsk my instructor82°FP Type here to searchChp

The sample mean is 52 and the sample standard deviation is 13.6.

Answered: Construct a 95% confidence interval to…

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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A 95% confidence interval for p the proportion of supermarket customers who do not buy house-brand products at all is calculated as 32%. With a margin of error of E=±4%, z*=1.96 for a 95% C.L. a) The population proportion is b) The unbiased point estimator is e) What sample size is needed for a 95% confidence level (z*=1.96) and margin of error of E=±2% and sample proportion of 32%? Round your answer to the next whole number.
The pulse rates of 158 randomly selected adult males vary from a low of 35 bpm to a high of 115 bpm. Find the minimum sample size required to estimate the mean pulse rate of adult males. Assume that we want 99% confidence that the sample mean is within 3 bpm of the population mean. Complete parts (a) through (c) below. a. Find the sample size using the range rule of thumb to estimate o. ..... (Round up to the nearest whole number as needed.) b. Assume that o = 12.5 bpm, based on the value s =12.5 bpm from the sample of 158 male pulse rates. %3D n= (Round up to the nearest whole number as needed.) c. Compare the results from parts (a) and (b). Which result is likely to be better? The result from part (a) is the result from part (b). The result from V is likely to be better because MacBook 80 000 000 F6 F5 F4 F3 F2 esc F1 & ! @ 23 7 8. 3 4 5 1 2 Y %24
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For the provided sample mean, sample size, and population standard deviation, complete parts (a) through (c) below. Assume that x is normally distributed. x= 30, n=9, 6 = 6 a. Find a 95% confidence interval for the population mean. The 95% confidence interval is from to (Round to two decimal places as needed.)
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6.2.9-T Construct the indicated confidence interval for the population mean u using the t-distribution. Assume the population is normally distributed. c = 0.95, x= 13.4, s= 3.0, n= 8 The 95% confidence interval using a t-distribution is (Round to one decimal place as needed.)

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