A study was commissioned to find the mean weight of the residents in certain town. The study found the mean weight to be 165 pounds with a margin of error of 8 pounds. Which of the following is not a reasonable value for the true mean weight of the residents of the town?

A study was commissioned to find the mean weight of the residents in certain town. The study found a confidence interval for the mean weight to be between 156 pounds and 176 pounds. What is the margin of error on the survey?

A study was commissioned to find the mean weight of the residents in certain town. The study examined a random sample of 127 residents and found the mean weight to be 151 pounds with a standard deviation of 21 pounds. At the 95% confidence level, use the normal distribution/empirical rule to estimate the margin of error for the mean, rounding to the nearest tenth.

A park ranger asked a random sample of visitors how far they hiked during their visit. Based on the responses, the estimated mean was found to be4.5miles, with an associated margin of error of0.5miles. Which of the following is the best conclusion from these data?

The average weight of a group of 20 boys and calculated to be 89.4 kg and it was later discovered that one weight was misread as 78 kg instead of 87 kg. The correct average weight is?

A survey was given to a random sample of the residents of a town to determine whether they support a new plan to raise taxes in order to increase education spending.  The percentage of people who said they favored the plan was 42%.  The margin of error for the survey was 1.5%.  Which of the following is not a reasonable value for the actual percentage of the residents that support the tax plan?