5. A manufacturer of golf equipment wishes to estimate the number of left-handed golfers. How large...

70.2K

Verified Solution

Question

Advance Math

5. A manufacturer of golf equipment wishes to estimate thenumber of left-handed golfers. How large of a sample is needed inorder to be 95% confident that the sample proportion will notdiffer from the true proportion by more than 4%.
6.
A local group claims that the police issue at least 60 speedingtickets a day in their area. To prove their point, they randomlyselect one month. Their research yields the number of ticketsissued for each day. The data are listed below. Assume thepopulation standard deviation is 12.2 tickets. At ? = 0.01, testthe group’s claim. Make sure to state your conclusion regarding theclaim with your reasoning.
70 48 41 68 69 55 70 57 60 83 32 60 72 58 88 48
59 60 56 65 66 60 68 42 57 59 49 70 75 63 44
7. A local politician, running for reelection, claims that themean prison time for car thieves is less than the required 4 years.A sample of 80 convicted car thieves was randomly selected, and themean length of prison time was found to be 3.5 years. Assume thepopulation standard deviation is 1.25 years. At ? = 0.05, test thepolitician’s claim. Make sure to state your conclusion regardingthe claim with your reasoning.

Answer & Explanation Solved by verified expert

3.6 Ratings (642 Votes)

5 Given confidence level 95alpha 5margin of error E 004sample size calculationp 05Z0025 196n 60025 6006OneSample Z DataDescriptive StatisticsNMeanStDev3160391219 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