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3. Twenty students are questioned about their leisure activities. These students spend an average of 18.5...
a-c please 3. In order to determine how many hours per week freshmen college students watch...
a-c please
3. In order to determine how many hours per week freshmen college students watch television, a random sample of 25 students was selected. It was determined that the students in the sample spent an average of 19.5 hours with a sample standard deviation of 3.9 hours watching TV per week. Please answer the following questions: (a) Provide a 95% confidence interval estimate for the average number of hours that all college freshmen spend watching TV per week. (b)...
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...
A random sample of 51 college students shows that they spend, on average, 4.5 hours on...
A random sample of 51 college students shows that they spend, on average, 4.5 hours on video games every night, with a standard deviation of 1.25 hours. Construct a 98% confidence interval to estimate the mean number of hours that college students spend on video games every nigh
8. A study conducted a few years ago claims that the adult males spend an average...
8. A study conducted a few years ago claims that the adult males spend an average of 11 hours a week watching sports on television. A recent sample of 100 adult males showed that the mean time they spend per week watching sports on television is 9.50 hours with a standard deviation of 2.2 hours. a. Use the result to give a 95% confidence interval for the mean time they spend per week watching sports on television. b. Does the...
According to a 2011 report by the United States Department of Labor, civilian Americans spend 2.75...
According to a 2011 report by the United States Department of Labor, civilian Americans spend 2.75 hours per day watching television. A faculty researcher, Dr. Sameer, at California Polytechnic State University (Cal Poly) conducts a study to see whether a different average applies to Cal Poly students. Suppose that for a random sample of 100 Cal Poly students, the mean and standard deviation of hours per day spent watching TV turns out to be 3.01 and 1.97 hours, respectively. The...
A researcher wants to estimate how many hours per week students who love off campus spend...
A researcher wants to estimate how many hours per week students who love off campus spend driving to campus. A simple random sample of 84 students had a mean of 5.0 hours of driving. Construct and interpret a 90% confidence interval for the mean number of hours a student drives per week. Assume the population standard deviation is known to be 0.3 hours per week.
all answers please 3. The teachers union is concerned about the amount of time teachers spend...
all answers please
3. The teachers union is concerned about the amount of time teachers spend each week doing schoolwork at home. A simple random sample of 56 teachers had a mean of 8.0 hours per week working at home after school. Assume that the population standard deviation is 1.5 hours per week. a) Construct a 95% confidence interval estimate for the mean number of hours per week a teacher spends working at home. b) Does the confidence interval support...
For a 4-unit class like Statistics, students should spend average of 12 hours studying for the...
For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 23 students, and the distribution of total study hours per week is bell-shaped with a mean of 13 hours and a standard deviation of 3.4 hours. Use the Empirical Rule to answer the following questions. a) 68% of the students spend between hours and hours on Statistics each week. b) 95% of the students spend between hours and...
The Nielsen Company is a global information and media company and one of the leading suppliers...
The Nielsen Company is a global information and media company and one of the leading suppliers of media infomatian. In their state-of-the-media report, they announced that U.S. cell phone subscribers average 5.4 hours per month watching videos on their phones. We decide to construct a 95% confidence interval for the average time (hours per month) spent watching videos on cell phones among U.S. College students. we draw the following SRS of Size 8 from this population. (Round your answers to...
only a n = 16, x = 10 , s = 2.2 pls solve stepwise (55...
only a
n = 16, x = 10 , s = 2.2
pls solve stepwise
(55 points) In a big university, a survey of 16 randomly selected male students showed that the mean time they spend per week watching sport on TV is 10 hours with standard deviations = 2.2 hours. (a) Find a point estimate for the population mean and the population standard deviation o of the amount of time for all male students in that University. (b) Construct...
a-c please
3. In order to determine how many hours per week freshmen college students watch television, a random sample of 25 students was selected. It was determined that the students in the sample spent an average of 19.5 hours with a sample standard deviation of 3.9 hours watching TV per week. Please answer the following questions: (a) Provide a 95% confidence interval estimate for the average number of hours that all college freshmen spend watching TV per week. (b)...
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...
8. A study conducted a few years ago claims that the adult males spend an average of 11 hours a week watching sports on television. A recent sample of 100 adult males showed that the mean time they spend per week watching sports on television is 9.50 hours with a standard deviation of 2.2 hours. a. Use the result to give a 95% confidence interval for the mean time they spend per week watching sports on television. b. Does the...
all answers please
3. The teachers union is concerned about the amount of time teachers spend each week doing schoolwork at home. A simple random sample of 56 teachers had a mean of 8.0 hours per week working at home after school. Assume that the population standard deviation is 1.5 hours per week. a) Construct a 95% confidence interval estimate for the mean number of hours per week a teacher spends working at home. b) Does the confidence interval support...
For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 23 students, and the distribution of total study hours per week is bell-shaped with a mean of 13 hours and a standard deviation of 3.4 hours. Use the Empirical Rule to answer the following questions. a) 68% of the students spend between hours and hours on Statistics each week. b) 95% of the students spend between hours and...
The Nielsen Company is a global information and media company and one of the leading suppliers of media infomatian. In their state-of-the-media report, they announced that U.S. cell phone subscribers average 5.4 hours per month watching videos on their phones. We decide to construct a 95% confidence interval for the average time (hours per month) spent watching videos on cell phones among U.S. College students. we draw the following SRS of Size 8 from this population. (Round your answers to...
only a
n = 16, x = 10 , s = 2.2
pls solve stepwise
(55 points) In a big university, a survey of 16 randomly selected male students showed that the mean time they spend per week watching sport on TV is 10 hours with standard deviations = 2.2 hours. (a) Find a point estimate for the population mean and the population standard deviation o of the amount of time for all male students in that University. (b) Construct...
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An ANOVA comparing two groups is equivalent to an independent
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True
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