Are the necessary assumptions to make inferences satisfied

Assignment Help Basic Computer Science

Reference no: EM131381317

Fuel economy. A company with a large fleet of cars hopes to keep gasoline costs down and sets a goal of attaining a fleet average of at least 26 miles per gallon. To see if the goal is being met, they check the gasoline usage for 50 company trips chosen at random, finding a mean of 25.02 mpg and a standard deviation of 4.83 mpg. Is this strong evidence that they have failed to attain their fuel economy goal?

a) Write appropriate hypotheses.

b) Are the necessary assumptions to make inferences satisfied?

c) Describe the sampling distribution model of mean fuel economy for samples like this.

d) Find the P-value.

e) Explain what the P-value means in this context.

f) State an appropriate conclusion.

Reference no: EM131381317

Questions Cloud

Find the mean and standard deviation of the weights : They carefully weighed the contents of each bag, recording the following weights (in grams): 29.3, 28.2, 29.1, 28.7, 28.9, 28.5.

What is the approximate p value : The results include n1 = 32, n2 = 30, n3 = 28, n4 = 41, SSTR = 4,537, and MSE = 412. Are all four names approximately equally liked, on average? What is the approximate p-value?

Importance of community colleges : What is the importance of community colleges have on our economy and what marketing efforts can be made in our workplace in order to increase credits sold and most importantly improve student retention in colleges? Please provide references.

Discuss about the post given below : As you form groups this week for your final project, consider some of your own hidden biases. After reading the Prejudice, Stereotyping and Discrimination article in Week 3's course materials, share one specific tactic you will use to reduce your ..

Are the necessary assumptions to make inferences satisfied : To see if the goal is being met, they check the gasoline usage for 50 company trips chosen at random, finding a mean of 25.02 mpg and a standard deviation of 4.83 mpg. Is this strong evidence that they have failed to attain their fuel economy goal..

Function of the office of management and budget : Explain the function of the Office of Management and Budget (OMB)" (at least 250 words)

Complete an anova table for given analysis : The analysis used a sample of 60 runs of each software package-computer combination. Complete an ANOVA table for this analysis, carry out the tests, and state your conclusions.

What technique did you use to track your expenses : What technique did you use to track your expenses? (Use Mint.com to track spending and budgeting) What did you discover? Were you surprised (why/why not)? What trends stand out? What were your expectations?

Problem regarding the disease control : From the first e-Activity, compare your state public health agency to the U.S. Department of Health and Human Service (DHHS) in relation to each agency's approach to disease management. Examine the role that each public health agency would play in..

User Account

All Pages