Question

11. In a randomized control trial for Calorie-Reduction (CR), 27 participants had a sample mean weight loss of $x = 5.42$ kg and standard deviation of $s = 9.39$ kg. What is the 95% confidence interval (CI) and margin of error (ME) for the population weight loss, $\mu$, of all participants on CR? Interpret your results. 12. Among 66 patients who received DARZALEX FASPRO, 22 reported Insomnia as an adverse reaction. Find the 90% confidence interval (CI) and margin of error (ME) for the population proportion. Interpret your results. 13. Find the minimum sample size needed ($n$) to estimate the mean monthly earnings of students at Norco College. We want 90% confidence that we are within a margin of error of $150 when the population standard deviation is known to be $625 ($\sigma = 625$). 14. Find the minimum sample size ($n$) needed to be within a margin of error of 3.5% and a confidence level of 95% when $\hat{p}$ and $\hat{q}$ are unknown.

          11.
In a randomized control trial for Calorie-Reduction (CR), 27 participants had a sample mean
weight loss of $x = 5.42$ kg and standard deviation of $s = 9.39$ kg. What is the 95% confidence
interval (CI) and margin of error (ME) for the population weight loss, $\mu$, of all participants on CR?
Interpret your results.
12. Among 66 patients who received DARZALEX FASPRO, 22 reported Insomnia as an adverse
reaction. Find the 90% confidence interval (CI) and margin of error (ME) for the population
proportion. Interpret your results.
13.
Find the minimum sample size needed ($n$) to estimate the mean monthly earnings of students
at Norco College. We want 90% confidence that we are within a margin of error of $150 when the
population standard deviation is known to be $625 ($\sigma = 625$).
14.
Find the minimum sample size ($n$) needed to be within a margin of error of 3.5% and a
confidence level of 95% when $\hat{p}$ and $\hat{q}$ are unknown.

$11. In a randomized control trial for Calorie-Reduction (CR), 27 participants had a sample mean weight loss of x = 5.42 kg and standard deviation of s = 9.39 kg. What is the 95% confidence interval (CI) and margin of error (ME) for the population weight loss, μ, of all participants on CR? Interpret your results. 12. Among 66 patients who received DARZALEX FASPRO, 22 reported Insomnia as an adverse reaction. Find the 90% confidence interval (CI) and margin of error (ME) for the population proportion. Interpret your results. 13. Find the minimum sample size needed (n) to estimate the mean monthly earnings of students at Norco College. We want 90% confidence that we are within a margin of error of $150 when the population standard deviation is known to be 625 (σ= 625). 14. Find the minimum sample size (n) needed to be within a margin of error of 3.5% and a confidence level of 95% when $\hat{p}$ and $\hat{q}$ are unknown.$

Added by James W.

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