A marketing research company desires to know the mean consumption of milk per week among males...

A marketing research company desires to know the mean consumption of milk per week among males over age 3232. A sample of 710710 males over age 3232 was drawn and the mean milk consumption was 4.64.6 liters. Assume that the population standard deviation is known to be 0.80.8 liters. Construct the 98%98% confidence interval for the mean consumption of milk among males over age 3232. Round your answers to one decimal place.

Solutions

Expert Solution

Answer : 98% C .I IS 4.5 < < 4.7

orchestra answered 1 year ago

Next > < Previous

Related Solutions

A marketing research company desires to know the mean consumption of milk per week among males...

A marketing research company desires to know the mean consumption of milk per week among males over age 22. A sample of 715 males over age 22 was drawn and the mean milk consumption was 4.2 liters. Assume that the population standard deviation is known to be 1.3 liters. Construct the 90% confidence interval for the mean consumption of milk among males over age 22. Round your answers to one decimal place.

A marketing research company desires to know that mean consumption of milk per week among people...

A marketing research company desires to know that mean consumption of milk per week among people over age 31. They believe that the milk consumption has a mean of 4.6 L I want to construct a 90% confidence interval with the maximum error of 0.08 L. Assuming you variance of 0.81 L what is the minimum number of people over age 31 they must include in their sample round your answer up to the next integer

a marketing research company desires to know the mean consumption of potatoes per week among people...

a marketing research company desires to know the mean consumption of potatoes per week among people over age 49. They believe that potatoes consumption has a mean of 4.2 pounds and want to construct a 95% confidence interval with a maximum error of .05 pounds. Assuming a variance of 1.44 pounds, what is the minimum number of people over age 49 they must include in their sample? A)1960 B)2401 C)49 D)2213 E)297

The mean per capita consumption of milk per year is 131 liters with a variance of...

The mean per capita consumption of milk per year is 131 liters with a variance of 841. If a sample of 132 people is randomly selected, what is the probability that the sample mean would be less than 133.5 liters? Round your answer to four decimal places.

The mean per capita consumption of milk per year is 133 liters with a variance of...

The mean per capita consumption of milk per year is 133 liters with a variance of 576. If a sample of 195 people is randomly selected, what is the probability that the sample mean would differ from the true mean by less than 3.62 liters? Round your answer to four decimal places.

8. Research Question: A nutritionist claims that the mean daily consumption of fiber for 20-39-year-old males...

8. Research Question: A nutritionist claims that the mean daily consumption of fiber for 20-39-year-old males is less than 20 grams per day. (The National Cancer Institute recommends that individuals consume 20-30 grams of fiber per day) In a survey of 457 males who were 20-39 years old, conducted by the U.S. Department of Agriculture, it was found that the mean daily intake of fiber was 19.1 grams, with standard deviation of 9.1 grams. Decide whether there is enough evidence...

You, as a researcher, were asked to investigate differences in fruit and vegetable consumption among males...

You, as a researcher, were asked to investigate differences in fruit and vegetable consumption among males and females in your city. Suggest three different probabilistic sampling methods to design this study. The sampling frame must be also stated. Explain your answers.

A researcher desires to know whether the typing speed of a secretary (in words per minute)...

A researcher desires to know whether the typing speed of a secretary (in words per minute) is related to the time (in hours) that it takes the secretary to learn to use a new word processing program. The data are shown. Speed x Time y 48 7 74 4 52 8 79 3.5 83 2 56 6 85 2.3 63 5 88 2.1 74 4.5 90 1.9 92 1.5 If there is a significant relationship, predict the time it will...

1. A researcher desires to know whether the typing speed of a secretary (in words per...

1. A researcher desires to know whether the typing speed of a secretary (in words per minute) is related to the time (in hours) that it takes the secretary to learn to use a new word processing program. The data are shown below. Speed 48 74 52 79 83 56 85 63 88 74 90 92 Time 7 4 8 3.5 2 6 2.3 5 2.1 4.5 1.9 1.5 First, make a scatter plot of the data. Next, find the...

According to a recent study annual per capita consumption of milk in the United States is...

According to a recent study annual per capita consumption of milk in the United States is 22.6 gallons. Being from the Midwest, you believe milk consumption is higher there and wish to test your hypothesis. A sample of 14 individuals from the Midwestern town of Webster City was selected and then each person's milk consumption was entered into the Microsoft Excel Online file below. Use the data to set up your spreadsheet and test your hypothesis. 25.8 23.84 25.25 21.2...

Subjects