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A certain type of thread is manufactured with a mean tensile strength of 73.5 kilograms and a standard deviation of 4.8 kilograms. How is the variance of the sample mean changed when the sample size is (a) increased from 64 to 900? (b) decreased from 256 to 36? (a) The sample variance from for n = 64 to for n=900. (Type integers or decimal increases

A certain type of thread is manufactured with a mean tensile strength of 73.5 kilograms and a standard deviation of 4.8 kilograms. How is the variance of the sample mean changed when the sample size is (a) increased from 64 to 900? (b) decreased from 256 to 36? (a) The sample variance from for n = 64 to for n=900. (Type integers or decimal increases

A First Course in Probability (10th Edition)
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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I need help with this please. Units for last one is also kg or kg^2

A certain type of thread is manufactured with a mean tensile strength of 73.5 kilograms and a standard deviation of 4.8 kilograms. How is the variance of the sample mean changed when the sample size is (a) increased from 64 to 900? (b) decreased from 256 to 36? (a) The sample variance from for n = 64 to for n = 900. (Type integers or decimal increases decreases
Transcribed Image Text:A certain type of thread is manufactured with a mean tensile strength of 73.5 kilograms and a standard deviation of 4.8 kilograms. How is the variance of the sample mean changed when the sample size is (a) increased from 64 to 900? (b) decreased from 256 to 36? (a) The sample variance from for n = 64 to for n = 900. (Type integers or decimal increases decreases
A certain type of thread is manufactured with a mean tensile strength of 73.5 kilograms and a standard deviation of 4.8 kilograms. How is the variance of the sample mean changed when the sample size is (a) increased from 64 to 900? (b) decreased from 256 to 36? (a) The sample variance from for n = 64 to for n = 900. (Type integers or decimals. Do not round.) kg kg²
Transcribed Image Text:A certain type of thread is manufactured with a mean tensile strength of 73.5 kilograms and a standard deviation of 4.8 kilograms. How is the variance of the sample mean changed when the sample size is (a) increased from 64 to 900? (b) decreased from 256 to 36? (a) The sample variance from for n = 64 to for n = 900. (Type integers or decimals. Do not round.) kg kg²
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