A data set includes 104 body temperatures of healthy adult humans having a mean of 98.7°F and a standard deviation of 0.66°F. Construct a 99% confidence interval estimate of the mean body temperature of all healthy humans. What does the sample suggest about the use of 98.6°F as the mean body temperature? 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. What is the confidence interval estimate of the population mean µ? °F

The weights of bags of baby carrots are normally distributed, with a mean of 31 ounces and a standard deviation of 0.39 ounce. Bags in the upper 4.5% are too heavy and must be repackaged. What is the most a bag of baby carrots can weigh and not need to be repackaged? Click here to view Page 1 of the Standard Normal Table. Click here to view Page 2 of the Standard Normal Table. A bag of baby carrots can weigh at most ounces without needing to be repackaged. (Round to two decimal places as needed.)

Assume the average amount of caffeine consumed daily by adults is normally distributed with a mean of 230 mg and a standard deviation of 47 mg. In a random sample of 600 ​adults, how many consume at least 310 mg of caffeine​ daily?   Click here to view page 1 of the standard normal distribution table. LOADING... Click here to view page 2 of the standard normal distribution table. LOADING...       Question content area bottom Part 1 Of the 600 ​adults, approximately enter your response here adults consume at least 310 mg of caffeine daily.

please answer the question in the photo. Thank you

A normal distribution has a mean of 62 and a standard deviation of 17. What is the median?

The credit manager of Northwest Department Store would like to know what proportion of the     charge customers take advantage of the store’s deferred-payment plan each year. The manager would like to estimate this figure to be within 0.1 at 90% confidence level. Determine the desired sample size to meet the requirements.

In a survey of women in Canada, the mean height was 65 inches with a standard deviation of3 inches. What height represents the 90th percentile?

You may need to use the appropriate appendix table or technology to answer this question. The U.S. Energy Information Administration (US EIA) reported that the average price for a gallon of regular gasoline is $2.94. The US EIA updates its estimates of average gas prices on a weekly basis. Assume the standard deviation is $0.25 for the price of a gallon of regular gasoline and recommend the appropriate sample size for the US EIA to use if they wish to report each of the following margins of error at 95% confidence. (Round your answers up to the nearest whole number.) (a) The desired margin of error is $0.10. (b) The desired margin of error is $0.06. (c) The desired margin of error is $0.04.

If a set of sample measurements has a mean of 100, a normal distribution, a standard deviation of 2, and control limits of 94 and 106, what percentage of the samples are expected to be between 94 and 106? Explain your answer.

According to the Department of Education the mean number of hours college students spend studying each week follows a normal distribution with a mean of 20 hours and standard deviation of 9 hours. What ‘hours of study’ represents the 90th percentile?           What ‘hours of study’ represents the 15th percentile?