The "Mars" division of a big auotmobile manufacturer specializes in manufacturing scooters for export. The company claims that these scooters average at least 55 miles per gallon in city driving. An independant consumer avocate road tested a sample of 25 scooters. The sample showed an average of 60 miles per gallon, with a standard deviation of 10 miles per gallon. At 0.10 level of significance, can the company's claim be rejected?
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This company's claims cannot be rejected. You will notice that they say the scooters get AT LEAST 55 miles to the gallon ...
I don't understand the formulas and rationales for the attached. I also don't have the correct version of excel to use the tool pack I need so I am doing everything manually. I am doing the work on my own but want to make sure it is somewhat correct prior to turning in. Any help would be appreciated. Thank you.
Can you please help me with the following questions? I have to write a paper in APA format and this is part of the paper is what I'm stuck on. Thank you in advance.
1.) Explain the purpose of null hypothesistesting and provide examples of hypothesis that may be tested with the data set. (attached is the data).
2.) Exp
A sample of 120 observations revealed that p = .30. At the 0.05 significance level, can the null hypothesis be rejected?
a) state the decision rule
b)compute the value of the test statistic
c)what is your decision regarding the null hypothesis?
1. What value is business research and hypothesistesting to a company?
Start by defining business research and the steps in hypothesistesting. Then explain the value of business research and hypothesistesting using your organization as an example.
2. What is the "perfect" standard normal distribution? Explain your answer
Provide examples regarding how to set up a "Null Hypothesis" and the "Alternate Hypothesis." This is based on ideas of the meaning of the tests and how this may be used in an exercise.
