A nutritionist wants to determine how much time nationally people spend eating and drinking Suppose for a random sample of 936 people age 15 or older, the mean amount of time spent eating or drinking per day is 1.79 hours with a standard deviation of 0.58 hour Complete parts (a) through (d) below. (a) A histogram of time spent eating and drinking each day is skewed right. Use this result to explain why a large sample size is needed to construct a confidence interval for the mean time spent eating and drinking each day. OA. The distribution of the sample mean will always be approximately normal. OB. Since the distribution of time spent eating and drinking each day is normally distributed, the sample must be large so that the distribution of the sample mean will be approximately normal OC. The distribution of the sample mean will never be approximately normal VD. Since the distribution of time spent eating and drinking each day is not normally distributed (skewed right), the sample must be large so that the distribution of the sample mean will be approximately normal. (b) There are more than 200 million people nationally age 15 or older Explain why this, along with the fact that the data were obtained using a random sample, satisfies the requirements for constructing a confidence interval OA. The sample size is greater than 5% of the population B. The sample size is less than 5% of the population OC. The sample size is greater than 10% of the population. OD. The sample size is less than 10% of the population (c) Determine and interpret a 90% confidence interval for the mean amount of time Americans age 15 or older spend eating and drinking each day. Select the correct choice below and fill in the answer boxes, if applicable, in your choice. (Type integers or decimals rounded to three decimal places as needed. Use ascending order.) OA. There is a 90% probability that the mean amount of time spent eating or drinking per day is between and hours. OB. The nutritionist is 90% confident that the mean amount of time spent eating or drinking per day is between and hours OC. The nutritionist is 90% confident that the amount of time spent eating or drinking per day for any individual is between and hours OD. The requirements for constructing a confidence interval are not satisfied.
A nutritionist wants to determine how much time nationally people spend eating and drinking Suppose for a random sample of 936 people age 15 or older, the mean amount of time spent eating or drinking per day is 1.79 hours with a standard deviation of 0.58 hour Complete parts (a) through (d) below. (a) A histogram of time spent eating and drinking each day is skewed right. Use this result to explain why a large sample size is needed to construct a confidence interval for the mean time spent eating and drinking each day. OA. The distribution of the sample mean will always be approximately normal. OB. Since the distribution of time spent eating and drinking each day is normally distributed, the sample must be large so that the distribution of the sample mean will be approximately normal OC. The distribution of the sample mean will never be approximately normal VD. Since the distribution of time spent eating and drinking each day is not normally distributed (skewed right), the sample must be large so that the distribution of the sample mean will be approximately normal. (b) There are more than 200 million people nationally age 15 or older Explain why this, along with the fact that the data were obtained using a random sample, satisfies the requirements for constructing a confidence interval OA. The sample size is greater than 5% of the population B. The sample size is less than 5% of the population OC. The sample size is greater than 10% of the population. OD. The sample size is less than 10% of the population (c) Determine and interpret a 90% confidence interval for the mean amount of time Americans age 15 or older spend eating and drinking each day. Select the correct choice below and fill in the answer boxes, if applicable, in your choice. (Type integers or decimals rounded to three decimal places as needed. Use ascending order.) OA. There is a 90% probability that the mean amount of time spent eating or drinking per day is between and hours. OB. The nutritionist is 90% confident that the mean amount of time spent eating or drinking per day is between and hours OC. The nutritionist is 90% confident that the amount of time spent eating or drinking per day for any individual is between and hours OD. The requirements for constructing a confidence interval are not satisfied.
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Author:Amos Gilat
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![A nutritionist wants to determine how much time nationally people spend eating and drinking. Suppose for a random sample of 936 people age 15 or older, the mean amount of time spent eating or drinking per day is 1.79 hours with a standard deviation of 0.58 hour. Complete
parts (a) through (d) below.
(a) A histogram of time spent eating and drinking each day is skewed right. Use this result to explain why a large sample size is needed to construct a confidence interval for the mean time spent eating and drinking each day.
OA. The distribution of the sample mean will always be approximately normal.
OB. Since the distribution of time spent eating and drinking each day is normally distributed, the sample must be large so that the distribution of the sample mean will be approximately normal.
OC. The distribution of the sample mean will never be approximately normal
D. Since the distribution of time spent eating and drinking each day is not normally distributed (skewed right), the sample must be large so that the distribution of the sample mean will be approximately normal.
(b) There are more than 200 million people nationally age 15 or older Explain why this, along with the fact that the data were obtained using a random sample, satisfies the requirements for constructing a confidence interval.
OA. The sample size is greater than 5% of the population.
B. The sample size is less than 5% of the population
OC. The sample size is greater than 10% of the population.
D. The sample size is less than 10% of the population
(c) Determine and interpret a 90% confidence interval for the mean amount of time Americans age 15 or older spend eating and drinking each day,
Select the correct choice below and fill in the answer boxes, if applicable, in your choice.
(Type integers or decimals rounded to three decimal places as needed. Use ascending order.)
OA. There is a 90% probability that the mean amount of time spent eating or drinking per day is between
OB. The nutritionist is 90% confident that the mean amount of time spent eating or drinking per day is between and
OC. The nutritionist is 90% confident that the amount of time spent eating or drinking per day for any individual is between
OD. The requirements for constructing a confidence interval are not satisfied.
and
hours.
hours.
and
hours](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5f039e5c-58ac-4214-8a49-e66e54f543b0%2F22dd7da7-8068-4fdd-9a0f-fc5569ceffd1%2Fcw8q3ho_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A nutritionist wants to determine how much time nationally people spend eating and drinking. Suppose for a random sample of 936 people age 15 or older, the mean amount of time spent eating or drinking per day is 1.79 hours with a standard deviation of 0.58 hour. Complete
parts (a) through (d) below.
(a) A histogram of time spent eating and drinking each day is skewed right. Use this result to explain why a large sample size is needed to construct a confidence interval for the mean time spent eating and drinking each day.
OA. The distribution of the sample mean will always be approximately normal.
OB. Since the distribution of time spent eating and drinking each day is normally distributed, the sample must be large so that the distribution of the sample mean will be approximately normal.
OC. The distribution of the sample mean will never be approximately normal
D. Since the distribution of time spent eating and drinking each day is not normally distributed (skewed right), the sample must be large so that the distribution of the sample mean will be approximately normal.
(b) There are more than 200 million people nationally age 15 or older Explain why this, along with the fact that the data were obtained using a random sample, satisfies the requirements for constructing a confidence interval.
OA. The sample size is greater than 5% of the population.
B. The sample size is less than 5% of the population
OC. The sample size is greater than 10% of the population.
D. The sample size is less than 10% of the population
(c) Determine and interpret a 90% confidence interval for the mean amount of time Americans age 15 or older spend eating and drinking each day,
Select the correct choice below and fill in the answer boxes, if applicable, in your choice.
(Type integers or decimals rounded to three decimal places as needed. Use ascending order.)
OA. There is a 90% probability that the mean amount of time spent eating or drinking per day is between
OB. The nutritionist is 90% confident that the mean amount of time spent eating or drinking per day is between and
OC. The nutritionist is 90% confident that the amount of time spent eating or drinking per day for any individual is between
OD. The requirements for constructing a confidence interval are not satisfied.
and
hours.
hours.
and
hours
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