Full-time college students report spending a mean of 28 hours per week on academic activities, both...
Full-time college students report spending a mean of 28 hours per week on academic activities, both inside and outside the classroom. Assume the standard deviation of time spent on academic activities is 4 hours. Complete parts (a) through (d) below.
a. If you select a random sample of 25 full-time college students, what is the probability that the mean time spent on academic activities is at least
27 hours per week?
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Full-time college students report spending a mean of 28 hours
per week on academic activities, both...
Suppose the average number of hours full-time college students work per week is 25 with a...
Suppose the average number of hours full-time college students work per week is 25 with a standard deviation of 6 hours.. Random samples of 40 full time students are drawn. Find the mean and the standard deviation of the sample mean
The number of hours spent online by college students is claimed to be 22.5 hours per...
The number of hours spent online by college students is claimed to be 22.5 hours per week with a standard deviation of 2.1 hours. a)suppose we randomly select 50 college students, what is the probability that the mean number of hours online is greater than 25 B) Suppose i survey the 50 game programming students and the mean number of hours spent online is 25 hours per week. Is this unusual? Why or why not?
The times that college students spend studying per week have a distribution skewed to the right...
The times that college students spend studying per week have a distribution skewed to the right with a mean of 8.6 hours and a standard deviation of 2.8 hours. Find the probability that the mean time spent studying per week for a random sample of 49 college students would be between 8.2 and 8.9 hours. Round your answer to two decimal places.
1. To determine the average number of hours spent studying by college students per week, a...
1. To determine the average number of hours spent studying by college students per week, a sample of 39 students was randomly selected, and found to spend an average of 17.1 hours per week, with a standard deviation of 4.3 hours. Find the 90% confidence interval for the mean number of hours spent studying per week by all college students. What is the upper and lower bound? 2. If I asked a random student how many hours they study per...
Assume that the number of hours college students spend working per week is normally distributed with...
Assume that the number of hours college students spend working
per week is normally distributed with a mean of 18 hours and
standard deviation of 4 hours
2. Assume that the number of hours that college students spend working per week is normally distributed with a mean of 18 hours and a standard deviation of 4 hours. a. Mark the 7 hash marks on the x-axis with the appropriate labels in hours worked per week. Recall that the center hash...
The times that college students spend studying per week have a distribution skewed to the left...
The times that college students spend studying per week have a distribution skewed to the left with a mean of 8.4 hours and a standard deviation of 2.1 hours. Find the probability that the mean time spent studying per week for a random sample of 65 college students would be a. between 7.9 and 8.6 hours. Round your answer to two decimal places. P= b. less than 8.2 hours. Round your answer to two decimal places. P=
The mean number of hours of part-time work per week for a sample of 526 college...
The mean number of hours of part-time work per week for a sample of 526 college students is 28. if the margin of error for the population mean with a 99 % confidence interval is 2.2, construct a 99 % confidence interval for the mean number of hours of part-time work per week for all college students.
Chapter 07, Section 7.4, Problem 036 The times that college students spend studying per week have...
Chapter 07, Section 7.4, Problem 036 The times that college students spend studying per week have a distribution skewed to the left with a mean of 8.2 hours and a standard deviation of 2.8 hours. Find the probability that the mean time spent studying per week for a random sample of 65 college students would be a. between 7.7 and 8.4 hours. Round your answer to two decimal places. b. less than 8.1 hours. Round your answer to two decimal...
Some college graduates employed full-time work more than 40 hours per week, and some work fewer...
Some college graduates employed full-time work more than 40 hours per week, and some work fewer than 40 hours per week. We suspect that the mean number of hours worked per week by college graduates, A. is greater than 40 hours and wish to do a statistical test. We select a random sample of college graduates employed full-time and find that the mean of the sample is 44 hours and that the standard deviation is 4 hours Based on this...
QUESTION 5 In order to determine how many hours per week freshmen college students watch television,...
QUESTION 5 In order to determine how many hours per week freshmen college students watch television, a random sample of 256 students was selected. It was determined that the students in the sample spent an average of 14 hours with a standard deviation of 3.6 hours watching TV per week. a. Provide a 95% confidence interval estimate for the average number of hours that all college freshmen spend watching TV per week. Assume that a sample of 66 students was...
The times that college students spend studying per week have a distribution skewed to the right with a mean of 8.6 hours and a standard deviation of 2.8 hours. Find the probability that the mean time spent studying per week for a random sample of 49 college students would be between 8.2 and 8.9 hours. Round your answer to two decimal places.
Assume that the number of hours college students spend working
per week is normally distributed with a mean of 18 hours and
standard deviation of 4 hours
2. Assume that the number of hours that college students spend working per week is normally distributed with a mean of 18 hours and a standard deviation of 4 hours. a. Mark the 7 hash marks on the x-axis with the appropriate labels in hours worked per week. Recall that the center hash...
The times that college students spend studying per week have a distribution skewed to the left with a mean of 8.4 hours and a standard deviation of 2.1 hours. Find the probability that the mean time spent studying per week for a random sample of 65 college students would be a. between 7.9 and 8.6 hours. Round your answer to two decimal places. P= b. less than 8.2 hours. Round your answer to two decimal places. P=
The mean number of hours of part-time work per week for a sample of 526 college students is 28. if the margin of error for the population mean with a 99 % confidence interval is 2.2, construct a 99 % confidence interval for the mean number of hours of part-time work per week for all college students.
Chapter 07, Section 7.4, Problem 036 The times that college students spend studying per week have a distribution skewed to the left with a mean of 8.2 hours and a standard deviation of 2.8 hours. Find the probability that the mean time spent studying per week for a random sample of 65 college students would be a. between 7.7 and 8.4 hours. Round your answer to two decimal places. b. less than 8.1 hours. Round your answer to two decimal...
Some college graduates employed full-time work more than 40 hours per week, and some work fewer than 40 hours per week. We suspect that the mean number of hours worked per week by college graduates, A. is greater than 40 hours and wish to do a statistical test. We select a random sample of college graduates employed full-time and find that the mean of the sample is 44 hours and that the standard deviation is 4 hours Based on this...
QUESTION 5 In order to determine how many hours per week freshmen college students watch television, a random sample of 256 students was selected. It was determined that the students in the sample spent an average of 14 hours with a standard deviation of 3.6 hours watching TV per week. a. Provide a 95% confidence interval estimate for the average number of hours that all college freshmen spend watching TV per week. Assume that a sample of 66 students was...
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