Is there a difference in the population mean time spent watching tv per day for men and women? The p-value was 0.11. What can be said about the 90% confidence interval for the population mean difference?

A fellow student says that the average salary of graduates in your major is 30,000 dollars per year. You don’t think that this is correct. You think that the average salary is different from this. To show that your fellow student is wrong, you take a simple random sample of fifty graduates who have graduated in the past 5 years and ask for the amount of their starting salary. We want to investigate whether there is evidence to support your claim that the population mean starting salary is different from 30,000 and find that the p-value is 0.005.    What can be said about the 99% confidence interval for the population mean difference?

A fellow student says that the average salary of graduates in your major is 30,000 dollars per year. You don’t think that this is correct. You think that the average salary is different from this. To show that your fellow student is wrong, you take a simple random sample of fifty graduates who have graduated in the past 5 years and ask for the amount of their starting salary. We want to investigate whether there is evidence to support your claim that the population mean starting salary is different from 30,000 and find that the p-value is 0.03.    What can be said about the 95% confidence interval for the population mean difference?

Researchers want to determine if there is a connection between choice of musical instruments and gender. They want to see if the proportion of men (m) who play the flute is different from the proportion of women (f) who play the flute. They find that the p-value is 0.005.   What can be said about the 95% confidence interval for the population mean difference?

Do less men(m) then women(f) enroll in engineering courses? What would be the correct alternative hypothesis?

Researchers were trying to determine if a connection could be made between television viewing habits and gender. They want to see whether less men (m) watch the television show, Game of Thrones, than women (f). What would be the correct alternative hypothesis?

A fellow student says that the average salary of graduates in your major is 30,000 dollars per year. You don’t think that this is correct. You think that the average salary is different from this. To show that your fellow student is wrong, you take a simple random sample of fifty graduates who have graduated in the past 5 years and ask for the amount of their starting salary. We want to investigate whether there is evidence to support your claim that the population mean starting salary is different from 30,000 and find that the p-value is 0.07.    What can be said about the 95% confidence interval for the population mean difference?

Researchers want to determine if there is a connection between choice of musical instruments and gender. They want to see if the proportion of men (m) who play the flute is different from the proportion of women (f) who play the flute. They find that the p-value is 0.11.   What can be said about the 95% confidence interval for the population mean difference?

A nutritionist was interested in studying American’s opinions about healthy eating. One hundred randomly selected people who were starting a diet were asked if they ate five servings of fruit or vegetables a day. After six months, the same 100 people were asked if they ate five servings of fruit or vegetables a day.   Six months later “Yes, ate 5 servings” Six months later “No, did not eat five servings” Initial Response “Yes, ate five servings” 20 50 Initial Response “No did not eat five servings” 17 13  What is the sample proportion that did NOT eat 5 servings initially?

The General Social Survey asked 612 men (group 1) and 292 women(group 2) if they have been too exhausted from housework to do a good job at work. The 99% confidence interval for