Question

The average licensed driver travels 1,457 miles per month in his or her vehicle. Assume the population standard deviation is 451 miles per month. Determine the interval that will contain 85% of the sample means for the sample sizes in parts a through c a. 30 drivers b. 45 drivers c. 60 drivers d. Explain the differences in these probabilities. a. Using a sample size of 30 the lower bound of the symmetrical interval is and the upper bound is (Type an integer or decimal rounded to one decimal place as needed.) b. Using a sample size of 45 the lower bound of the symmetrical interval is and the upper bound is (Type an integer or decimal rounded to one decimal place as needed.) c. Using a sample size of 60 the lower bound of the symmetrical interval is and the upper bound is (Type an integer or decimal rounded to one decimal place as needed.) d. Increasing the sample size the standard error. This, in turn, the probabilities that the sample mean will be closer to the population mean

          The average licensed driver travels 1,457 miles per month in his or her vehicle. Assume the population standard deviation is 451 miles per month. Determine the interval that will contain 85% of the
sample means for the sample sizes in parts a through c
a. 30 drivers
b. 45 drivers
c. 60 drivers
d. Explain the differences in these probabilities.
a. Using a sample size of 30 the lower bound of the symmetrical interval is and the upper bound is
(Type an integer or decimal rounded to one decimal place as needed.)
b. Using a sample size of 45 the lower bound of the symmetrical interval is and the upper bound is
(Type an integer or decimal rounded to one decimal place as needed.)
c. Using a sample size of 60 the lower bound of the symmetrical interval is and the upper bound is
(Type an integer or decimal rounded to one decimal place as needed.)
d. Increasing the sample size the standard error. This, in turn, the probabilities that the sample mean will be closer to the population mean

The average licensed driver travels 1,457 miles per month in his or her vehicle. Assume the population standard deviation is 451 miles per month. Determine the interval that will contain 85% of the
sample means for the sample sizes in parts a through c
a. 30 drivers
b. 45 drivers
c. 60 drivers
d. Explain the differences in these probabilities.
a. Using a sample size of 30 the lower bound of the symmetrical interval is and the upper bound is
(Type an integer or decimal rounded to one decimal place as needed.)
b. Using a sample size of 45 the lower bound of the symmetrical interval is and the upper bound is
(Type an integer or decimal rounded to one decimal place as needed.)
c. Using a sample size of 60 the lower bound of the symmetrical interval is and the upper bound is
(Type an integer or decimal rounded to one decimal place as needed.)
d. Increasing the sample size the standard error. This, in turn, the probabilities that the sample mean will be closer to the population mean

Added by Samuel R.

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