A student at a four-year college claims that mean enrollment at four-year colleges is higher than...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A student at a four-year college claims that mean enrollment at four-year colleges is higher than at two-year colleges in the United States. Two surveys are conducted. Of the 35 two-year colleges surveyed, the mean enrollment was 5,065 with a standard deviation of 4,777. Of the 35 four-year colleges surveyed, the mean enrollment was 5,466 with a standard deviation of 8,191. Conduct a hypothesis test at the 5% level. NOTE: If you are using a Student's -distribution for the problem, including for paired data, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though) Part (a) State the null hypothesis OH Hay Hap O Hoj Pay CPAT O Ho Hay Hay Part() State the alternative hypothesis OH₂ May May OHj Hay Hay OH, P₂- -Per OH₂ May Pay Part() In words, state what your random variable XX represents. represents the mean enrollment in two-year colleges and four-year colleges OXX represents the mean difference in enrollment of two-year colleges and four-year colleges OXX represents the difference in the mean enrollment of beo-year colleges and four-year colleges represents the difference in enrollment of two-year colleges and four-year colleges - Comes The investigation is to determine if the mean enement in four-year colleges is higher than i difference in the mean ment Part (d) State the distribution to use for the best. (Enter your answer in the form or where of is the degrees of freedom. Round your answer to two decimal places) Part() What is the test statistic? If using the distribution round your answer to two decimal places and if using the distribution round your answer to three decimal places) A student at a four-year college claims that mean enrollment at four-year colleges is higher than at two-year colleges in the United States. Two surveys are conducted. Of the 35 two-year colleges surveyed, the mean enrollment was 5,065 with a standard deviation of 4,777. Of the 35 four-year colleges surveyed, the mean enrollment was 5,466 with a standard deviation of 8,191. Conduct a hypothesis test at the 5% level. NOTE: If you are using a Student's -distribution for the problem, including for paired data, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though) Part (a) State the null hypothesis OH Hay Hap O Hoj Pay CPAT O Ho Hay Hay Part() State the alternative hypothesis OH₂ May May OHj Hay Hay OH, P₂- -Per OH₂ May Pay Part() In words, state what your random variable XX represents. represents the mean enrollment in two-year colleges and four-year colleges OXX represents the mean difference in enrollment of two-year colleges and four-year colleges OXX represents the difference in the mean enrollment of beo-year colleges and four-year colleges represents the difference in enrollment of two-year colleges and four-year colleges - Comes The investigation is to determine if the mean enement in four-year colleges is higher than i difference in the mean ment Part (d) State the distribution to use for the best. (Enter your answer in the form or where of is the degrees of freedom. Round your answer to two decimal places) Part() What is the test statistic? If using the distribution round your answer to two decimal places and if using the distribution round your answer to three decimal places)
Expert Answer:
Related Book For
Macroeconomics Principles, Applications, and Tools
ISBN: 978-0132555234
7th Edition
Authors: Arthur O Sullivan, Steven M. Sheffrin, Stephen J. Perez
Posted Date:
Students also viewed these accounting questions
-
Assume that life expectancy in the United States is normally distributed with a mean of 73 years and a standard deviation of 9 years. What is the probability that you will live to be over 100 years...
-
A survey was conducted in the United States and 10 countries of Western Europe to determine the percentage of teenagers who had used marijuana and other drugs. The results are summarized in the...
-
A nationwide census is conducted in the United States every 10 years. a. Give at least two reasons why the United States takes a census only every 10 years. b. What are reasons for taking the census...
-
The e-commerce business in China has entered a golden period, with transaction volume of online trading reaching 21.86 billion yuan (US$2.64 billion) in 2004. With 94 million Internet users, more...
-
Lisa Ceja is unable to reconcile the bank balance for her catering company on January 31. Lisas reconciliation is as follows: Cash balance per bank .........$3,660.20 Add: NSF check ..............
-
Explain how a diverse population makes disaster recovery challenging.
-
The following purchase related transactions for Axiom, Inc., occurred during the month of February. Requirement 1. Journalize the transactions for Axiom, Inc. Omit explanations. Feb 3 Purchased...
-
The following diagram shows a staged absorption column in which n-hexane (H) is absorbed from a gas into a heavy oil. A gas feed stream containing 5.0 mole% hexane vapor and the balance nitrogen...
-
Please answer any four (out of five) questions. To get full marks in a quantitative question you must show all calculations and formula used. Question 1: 20 marks (a)Discuss how invoicing and lead...
-
You, CPA, work as an associate with Campbell and Associates LLP, a financial and business advisory firm. The board of directors of Pembroke Pulp and Paper Inc. (PPPI) has engaged your firm once again...
-
Dr Jannie Chan Siew Lee is the founder of the Asia-Pacific-based watch retailer The Hour Glass. The business was created in 1979, and Jannie served as the company's managing director from...
-
Explain the concept of wrongful adoption. How does it differ from adoption abrogation?
-
Should persons who wish to become adoptive parents be screened and subject to either pre- or post-placement studies? Should we subject persons who wish to reproduce biologically to similar...
-
How do courts generally respond when parents seek to undo an adoption?
-
Historically, what rights did an unwed father have relative to the adoption of his child and why?
-
How are unwed mothers and unwed fathers treated differently with respect to consent rights? What accounts for this differential treatment?
-
Suppose 22 g of C3H8 gas was compressed into a 425 ml steel cylinder at a temperature of 25C. What pressure in atm would the gas exert on the walls of the cylinder? Select the proper set-up for this...
-
Activator rod AB exerts on crank BCD a force P directed along line AB. Knowing that P must have a 100-N component perpendicular to arm BC of the crank, determine (a) The magnitude of the force P, (b)...
-
1. The short-run aggregate supply curve will move_________ if the economy s actual output is below full-employment output. 2. If the adjustment process works slowly, then economic policy is less...
-
Photovoltaic cells (or solar cells) convert sunlight directly into electricity. In 1980, the capital cost of solar cells was about $20 per watt of electricity generated. Technological innovation...
-
1. When the economy operates at full employment, an increase in government spending must crowd out consumption. ___________ (True/False) 2. A(n) ________ economy is open to trade, whereas a closed...
-
Museum directors today need both an advanced degree in art history and curatorial experience, as well as the financial acumen and managerial skills of a chief executive. In this economic environment,...
-
Discuss examples of how the changing economic condition has called for qualifi ed employees who are fl exible and willing to deal with rapid and unstructured changes. Give examples of impacts of...
-
Visit the US Department of Labor, Bureau of Labor Statistics web page and review Occupation Outlooks and Demographics Data. What additional workforce changes do you believe might take place in the...
Study smarter with the SolutionInn App