Question

In: Math

You may believe that each day, married and unmarried women spend the same amount of time...

You may believe that each day, married and unmarried women spend the same amount of time per week using Facebook. We would like to test this hypothesis. A random sample of 45 married women who use Facebook spent an average of 3.0 hours per week on this social media website. A random sample of 39 unmarried women who regularly use Facebook spent an average of 3.4 hours per week. Assume that the weekly Facebook time for married women has a population standard deviation of 1.2 hours, and the population standard deviation for unmarried Facebook users is 1.1 hours per week. Using the 0.05 significance level, do married and unmarried women differ in the amount of time per week spent on Facebook? State the decision rule for 0.05 significance level: H0: μ married = μ unmarried H1: μ married ≠ μ unmarried. (Negative values should be indicated by a minus sign. Round your answers to 3 decimal places.) Compute the test statistic. (Negative value should be indicated by a minus sign. Round your answer to 2 decimal places.) What is the p-value? (Round your answer to 4 decimal places.) State your decision about the null hypothesis. Fail to reject H0 Reject H0

Solutions

Expert Solution


milcah answered 11 months ago
Next > < Previous

Related Solutions

Data for the amount of time that Americans spend commuting to work each day creates a...
Data for the amount of time that Americans spend commuting to work each day creates a histogram that has a normal shape. The mean is 35 minutes and the standard deviation is 10 minutes. According to the Empirical Rule, which of the following is not a conclusion that we can make? a. It would be common to find a commuter who takes 43 minutes to commute to work. b. About 5% of commuters take longer than 55 minutes to commute...
Do the poor spend the same amount of time in the shower as the rich? The...
Do the poor spend the same amount of time in the shower as the rich? The results of a survey asking poor and rich people how many minutes they spend in the shower are shown below. Poor 26 20 29 15 26 33 35 23 36 31 36 39 31 Rich: 14 13 48 18 32 31 33 41 54 12 18 25 52 Assume both follow a Normal distribution. What can be concluded at the the αα = 0.05...
Do the poor spend the same amount of time in the shower as the rich? The...
Do the poor spend the same amount of time in the shower as the rich? The results of a survey asking poor and rich people how many minutes they spend in the shower are shown below. Poor 13 9 35 20 30 26 30 10 12 20 18 Rich: 37 15 22 37 26 48 45 43 47 19 47 20 Assume both follow a Normal distribution. What can be concluded at the the α = 0.05 level of significance...
English law created a system under which married women and unmarried women had widely divergent property...
English law created a system under which married women and unmarried women had widely divergent property rights. Why was the Chancery court, long before the passage of the Married Women's Property Acts in 1870, willing to grant women significant property rights through the use of trusts?
You want to estimate the mean amount of time internet users spend on facebook each month....
You want to estimate the mean amount of time internet users spend on facebook each month. How many internet users must be surveyed in order to be 95% confident that your sample mean is within 15 minutes of the population mean? Based on results from a prior Nielsen survey, assume that the standard deviation of the population of monthly times spent on facebook is 210 min.
You want to estimate the mean amount of time internet users spend on Facebook each month....
You want to estimate the mean amount of time internet users spend on Facebook each month. How many internet users must be surveyed to be 90% confident that your sample mean is within 10 minutes of the population mean? Use 210 minutes as an estimate of the population standard deviation.
Many people find that they spend a lot of time on their smartphones each day without...
Many people find that they spend a lot of time on their smartphones each day without realizing how long they are scrolling through apps or playing games. A researcher wanted to test whether a mindfulness intervention would help people be more aware of how much time they spend on their phones, and if this might lead to decreased time spent on their phones each day. To perform this study, participants used an app that tracks phone usage in minutes the...
A small university knows the average amount that its students spend on lunch each day. The...
A small university knows the average amount that its students spend on lunch each day. The amount spent on lunches for the population of 500 students is not highly skewed and has a mean of $8 and a standard deviation of $2. Suppose simple random sample of 49 students is taken, what is the probability that the sample mean for the sample of 49 students will be between $7.50 and $8.50?
If you spend $24.00 on average each day eating fast food, how much will you spend...
If you spend $24.00 on average each day eating fast food, how much will you spend on average each month? Assume 30 days in a month.
The amount of time each week that Dunder Mifflin employees spend in pointless meetings follows a...
The amount of time each week that Dunder Mifflin employees spend in pointless meetings follows a normal distribution with a mean of 90 minutes and standard deviation of 10 minutes. A. What is the probability that employees spend between 81.5 and 103.5 minutes in meetings in a week? B. The probability that employees spend between 80 and ???? minutes in meetings in a week is equal to 0.8351.
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT