Use technology and the given confidence level and sample data to find the confidence interval for the population mean u.

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Use Technology And The Given Confidence Level And Sample Data To Find The Confidence Interval For The Population Mean U 1 (45.13 KiB) Viewed 105 times

Use Technology And The Given Confidence Level And Sample Data To Find The Confidence Interval For The Population Mean U 2 (63.84 KiB) Viewed 105 times

Use technology and the given confidence level and sample data to find the confidence interval for the population mean u. Assume that the population does not exhibit a normal distribution e SPP Weight lost on a diet: 99% confidence n=51 X = 2.0 kg s=4.7 kg pla What is the confidence interval for the population mean u? kg<u<kg (Round to one decimal place as needed.) Is the confidence interval affected by the fact that the data appear to be from a population that is not normally distributed? su Ο ΟΟΟ O A. Yes, because the population does not exhibit a normal distribution B. No, because the sample size is large enough. C. No, because the population resembles a normal distribution OD. Yes, because the sample size is not large enough nt ets Get more help Next 2506
In a test of the effectiveness of garlic for lowering cholesterol, 43 subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The changes in their levels of LDL cholesterol (in mg/dL) have a mean of 4.4 and a standard deviation of 15.9. Complete parts (a) and (b) below. Click here to view at distribution table. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table S n ets : a. What is the best point estimate of the population mean net change in LDL cholesterol after the garlic treatment? The best point estimate is mg/dL. (Type an integer or a decimal.) b. Construct a 95% confidence interval esmate of the mean net change in LDL cholesterol after the garlic treatment. What does the confidence interval suggest about the effectiveness of garlic in reducing LDL cholesterol? What is the confidence interval estimate of the population mean u? mg/dL<r<mg/dL (Round to two decimal places as needed.) What does the confidence interval suggest about the effectiveness of the treatment? O A. The confidence interval limits do not contain 0, suggesting that the garlic treatment did not affect the LDL cholesterol levels. OB. The confidence interval limits do not contain 0, suggesting that the garlic treatment did affect the LDL cholesterol levels. OC. The confidence interval limits contain 0, suggesting that the garlic treatment did affect the LDL cholesterol levels.