Given eight sample observations from a normal population: 31; 29; 26; 33; 40; 28; 30; 25 so that the mean and standard deviation is respectively 30.3 and 4.7. Test the hypothesis that the population mean is 35. what is the correct conclusion at 5% significance level and test statistic of - 2.83?   Does the answer: A. Fail to reject null hypothesis B. Reject the null hypothesis C. Do not reject null hypothesis D. Accept null hypothesis

Q: A national survey reports that the average number of screens (TVs, computers, tablets, and…

A: Solution We have given The null and alternative hypothesis H0: μ=10.7    H1:μ≠10.7

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A: According to the given information in this question A hypothesis of no difference is called null…

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A: given data   sample size(n) = 15 sample standard deviation(s)  = 12.7construct 95 % ci for σ.

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A: The given sample size is 21, sample standard deviation is 5.11.

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A: Given  Sample mean x̄=29.2,n=33,s=5.8

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A: we have given that  sample size =11  ,sample mean= 36500 , standard deviation =5400 and mu=40000

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A: given  x1=39100x2=40500s1=2300s2=2100n1=60n2=60 the Hypothesis  H0:μ1=μ2 H1:μ1≠μ2 t critical value…

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A: From the provided information, Sample size (n) = 60 Level of significance (α) = 0.05

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A: Given , Population mean = μ = 10.7 Population standard deviation = σ = 1.5 Sample size n = 35 Sample…

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A: The mean is 3.0 and the population standard deviation is 5.0.

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A: R command has used.

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A: The claim is that the mean weight is less than 30 g.

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A: According our policy we can answer only first three subpart for remaining please repost the…