Question

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 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 with a standard deviation is $1100. With an α = 0.01, is the student senate correct

The average local cell phone call length was reported to be 2.27 minutes. A random sample of 20 phone calls showed an average of 2.98 minutes in length. At an α = 0.05 can it be concluded that the average differs from the population average? Assume that the population is approximately normally distributed with a standard deviation of 0.98 minute

The percentage of physicians who are women is 27.9%. In a survey of physicians employed by a large university health system, 45 of 120 randomly selected physicians were women. Is there sufficient evidence at the 0.10 level of significance to conclude that the proportion of women physicians at the university health system exceeds 27.9%?

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
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....
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...
Gender Bias in the Executive Suite Worldwide The Grant Thornton International Business Report (IBR) has described...
Gender Bias in the Executive Suite Worldwide The Grant Thornton International Business Report (IBR) has described itself as "a quarterly survey of business leaders from across the globe … surveying 11,500 businesses in 40 economies across the globe on an annual basis." 1 According to the 2011 IBR, the Asia Pacific region had a higher percentage (27 percent) of female chief executive officers (CEOs) than Europe and North America. Japan is the only Asia Pacific region exception. The report further...
Delta airlines case study Global strategy. Describe the current global strategy and provide evidence about how...
Delta airlines case study Global strategy. Describe the current global strategy and provide evidence about how the firms resources incompetencies support the given pressures regarding costs and local responsiveness. Describe entry modes have they usually used, and whether they are appropriate for the given strategy. Any key issues in their global strategy? casestudy: Atlanta, June 17, 2014. Sea of Delta employees and their families swarmed between food trucks, amusement park booths, and entertainment venues that were scattered throughout what would...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT