The writer is very fast, professional and responded to the review request fast also. Thank you.
Book/movie review
22/08/2022
Problem 1. The owner of a gasoline station wants to study gasoline purchasing habits by motorists at his station. He selects a random sample of 60 motorists during a certain week with the following results: the sample mean for purchases was 11.3 gallons, the sample standard deviation was 3.1 gallons, and 11 motorists purchased premium‐grade gasoline. At the 0.10 level of significance (i.e., use α = .10),
a. Is there evidence that the population mean gasoline purchase was different from 10 gallons? Use the critical value approach. (7pts)
Critical value approach template:
State the null and alternative hypotheses.
What hypothesis test should you use? Circle one:
State your rejection rule (for the critical value approachmake sure to include your critical value(s)):
Calculate the test statistic (refer to part b).
State your conclusion based on (c) and (d). Circle one: Reject .
b. Is there evidence that fewer than 20% of all motorists at the station purchased premium‐grade gasoline? Use the critical value approach. (7pts)
Critical value approach template:
State the null and alternative hypotheses.
What hypothesis test should you use? Circle one:
State your rejection rule (for the critical value approachmake sure to include your critical value(s)):
Calculate the test statistic (refer to part b).
State your conclusion based on (c) and (d). Circle one: Do not reject .
c. Refer to part (b). If you were using the p‐value approach, what would be the rejection rule? (1pt)
d. Refer to part (b). If you were using the p‐value approach, what would be the p‐value? (1pt)
The writer is very fast, professional and responded to the review request fast also. Thank you.
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more