Question

Question 2 It has been reported that the average credit card debt for college seniors is...

Question 2

It has been reported that the average credit card debt for college seniors is $3262. The student council at a large university feels that their seniors have a debt much less than this, so it conducts a study of 50 randomly selected seniors and finds that the average debt is $2995, and the population standard deviation is $1100. With α = 0.05, is the student council correct?

a. Write down the null and alternative hypotheses   [2 marks]

b. Is this a one or a two tailed test?                                                                    [1 mark]

c. Find the test value                                                                                          [2 marks]

d. Write the decision                                                                                          [2 marks]

e. Summarize your results                                                                                 [1 mark]

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
it has been reported that the average credit card debt for college seniors is $3,262. the...
it has been reported that the average credit card debt for college seniors is $3,262. the student Senate at a large university feels that their seniors have a debt much less than this, so it conducts a study of 50 randomly selected seniors and finds that the average debt is $2,995, And the population standard deviation is $1,100. a) is there enough evidence to support the claim at a= 0.05? b) find a 95? confidence interval for the true average...
a) State the null and alternative hypothesis. b) Select the distribution to use. c) Write the...
a) State the null and alternative hypothesis. b) Select the distribution to use. c) Write the decision rule. (Define the rejection region.) d) Calculate the test statistic. e) Calculate the p-value. f) Make a decision. g) (Additional step for this worksheet) State the type I and II error in context of the problem. It has been reported that the average credit card debt for college seniors at the college book store for a specific college is $3262. The student senate...
The average credit card debt for college seniors is $3,262. If the debt is normally distributed...
The average credit card debt for college seniors is $3,262. If the debt is normally distributed with a standard deviation of $1,100, find the probability that the mean debt of 16 seniors has more than $4,000 in debt.
The average credit card debt for college seniors is $3200. The data is normally distributed with...
The average credit card debt for college seniors is $3200. The data is normally distributed with standard deviation of $900. What is the probability a student will owe between $2500 and $4000? Round to the nearest ten-thousandths.
1.) According to a lending​ institution, students graduating from college have an average credit card debt...
1.) According to a lending​ institution, students graduating from college have an average credit card debt of ​$4,200. A random sample of 40 graduating seniors was selected, and their average credit card debt was found to be ​$4,542. Assume the standard deviation for student credit card debt is $1,100. Using alphaαequals=0.01​, complete parts a through d below. a. what is the test statistic? b. what are the critical scores? c.fill in the blank: because the test statistic ___________________ _________ the...
It has been reported that the proportion of college seniors who have student loans is 72%....
It has been reported that the proportion of college seniors who have student loans is 72%. The state senate feels that the proportion of college seniors in their state who have student loans is much less than this and tests the following hypotheses: H0 : p=0.72 H1 : p<0.72 In this situation, explain the meaning of a Type II error.
According to a lending instistution, students graduating from college have an average credit card debt of...
According to a lending instistution, students graduating from college have an average credit card debt of $4,100. A sample of 50 graduating seniors was selected, and their average credit card debt was found to be $4,462. Assume the standard deviation for student credit card debt is $1,200. Using alpha= 0.10, complete a-c below. a. The z-test statistic is _____ b. The critical z score(s) is(are)_____ c. The p-value is_____
18. The average loan debt for college seniors is $20,262. If the debt is normally distributed...
18. The average loan debt for college seniors is $20,262. If the debt is normally distributed with a standard deviation of $5100, find these probabilities: (3 points each) Find the probability that a randomly selected senior owes at least $21,000.   Find the probability that the mean debt from a sample of 20 seniors falls between $20,000 and $21,000. (3 points) The average weight of a package of rolled oats is supposed to be at least 18 ounces. A sample of...
The average credit card debt for a recent year was $8,776. Five years earlier the average...
The average credit card debt for a recent year was $8,776. Five years earlier the average credit card debt was $8,189. Assume sample sizes of 32 were used and the population standard deviations of both samples were $690. Is there evidence to conclude that the average credit card debt has increased? Use . a. State the hypotheses. b. Find the critical value. c. Compute the test statistic. d. Make the decision. e. Summarize the results.
The average student loan debt is reported to be $25,235. A student belives that the student...
The average student loan debt is reported to be $25,235. A student belives that the student loan debt is higher in her area. She takes a random sample of 100 college students in her area and determines the mean to be $27,524 and the standard devition to be $6000. Is there sufficient evidence to support the student' claim at a 5% significance level? a) Determine the null and alternative hypotheses. H0H0: μ=μ= HaHa: μμSelect an answer < not = >   (Put...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT