4. A random sample of ten measurements were obtained from a normally distributed population with mean = 6.5. The sample values are X= 4.2 and S = 2. a. Test the null hypothesis that the mean of the population against the alternative hypothesis, μ = 6.5. Use a = 0.05. b. Test the null hypothesis that the mean of the population against the alternative hypothesis, μ6.5. Use a = 0.05

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A: Givenpopulation standard deviation(σ)=74.3margin of error(E)=1.5α=1-0.98=0.02α2=0.01Z0.01=2.3263…

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A: given data σ = 50.798% ci for μ.E = 5n = ?

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Q: How large of a sample size is required?

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A: σ =   27.990% confidence interval for μ.E = 1n = ?

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Q: We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers…

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