population average is 80, is there enough evidence to support the statistician's claim at a level of significance of 0.025? (T-Test) What is the decision for this test? A) Reject both the Null and Alternate Hypothesis. B) Accept the Null Hypothesis, Reject the Alternate Hypothesis. C) Reject the Null Hypöthesis, Accept the Alternate Hypothesis. D) Accept both the Null and the Alternate Hypothesis.

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A: Test is that whether the mean SI score has decreased. From previous studies,  the mean is 82.

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A: xbar = 48 mu = 32 s = 6 n =20

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A: Given information, x¯=48s=6n=20μ=32 A) Test statistic: t=x¯-μsn =48-32620 =11.9257 Critical values:…

Q: You are part of a trivia team and have tracked your team's performance since you started playing, so…

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A: Given : Test statistic is z = 0.901 P-value = 0.385

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A: sample size(n)=13Mean()=123standard deviation(s)=21significance level()=0.05

Q: Using 1% level of significance, test if the population average is not 73.

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A: n=46,  Ho: μd=0.8  H1: μd>0.8 (claim)  sd=0.43, x̄d=1

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Q: Total blood volume (in ml) per body weight (in kg) is important in medical research.  For healthy…

A: Answer :- Option :- C) 2.62 Test Statistics = 2.62

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