In a random sample of 340 cars driven at low altitudes, 46 of them exceeded a...

50.1K

Verified Solution

Question

Statistics

In a random sample of 340 cars driven at low altitudes, 46 ofthem exceeded a standard of 10 grams of particulate pollution pergallon of fuel consumed. In an independent random sample of 85 carsdriven at high altitudes, 21 of them exceeded the standard. Can youconclude that the proportion of high altitude vehicles exceedingthe standard is greater than the proportion of low altitudevehicles exceeding the standard?
a. State whether the test is:
i) a two-sample t-test (independent samples)
ii) a matched pairs
iii) a two sample proportion test
b. Write H0 and H1
c. Using Minitab, list the test statistic the p-value yourconclusion: reject H0 or do not reject H0. Note: if Î± is notprovided, use a 0.05 significance level
d.Â Â Write a sentence that explains your conclusion incontext with the claim. Include the significance level and p-valuein this sentence.
e.Â Â Copy and paste the relevant Minitab output intothe document. Answers alone are sufficient, you do not need to copythe exercise into the document.

Answer & Explanation Solved by verified expert

4.1 Ratings (577 Votes)

a iii a two sample proportion test High altitude 1Low altitude 2c Test stats z 222 Pvalue 00132 Pvalue is less than 005 So Reject Hod Since Pvalue See Answer

Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:

Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!

Become a Member