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
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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I need help with this please. Units for last one is also kg or kg^2
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