In a research report,Richard H. Weindruch of the UCLA Medical School claims that mice with an average life span of 32 months will live to be about 40 months old when 40% of the calories in their diet...

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In a research report,Richard H. Weindruch of the UCLA Medical School claims that mice with an average life span of 32 months will live to be about 40 months old when 40% of the calories in their diet are replaced by vitamins and protein. Is there any reason to believe that u < 40="" if="" 64="" mice="" that="" are="" placed="" on="" this="" diet="" have="" an="" average="" life="" of="" 38="" months="" with="" a="" standard="" deviation="" of="" 5.8="" months?="" use="" a="" p-="" value="" in="" your="">

Answered Same DayDec 26, 2021

Answer To: In a research report,Richard H. Weindruch of the UCLA Medical School claims that mice with an...

Robert answered on Dec 26 2021

124 Votes

Test: µ < 40 with normal distn
Hypothesis test:
H0 : µ ≥ 40 (Null Hypothesis, H0 : µ = 40 is also correct)
Ha : µ < 40 (Alternative Hypothesis, also called H1)
This is lower tailed test.
Since sample size is large, sample standard deviation can be taken as an approx-
imation of population standard deviation.
x = 38
σ = 5.8
n = 64
Significance Level, α = 0.05 (If no...

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In a research report,Richard H. Weindruch of the UCLA Medical School claims that mice with an average life span of 32 months will live to be about 40 months old when 40% of the calories in their diet...

Answer To: In a research report,Richard H. Weindruch of the UCLA Medical School claims that mice with an...

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