Faced with rising fax costs, a firm issued a guideline that transmissions of 8 pages or...

60.1K

Verified Solution

Question

Basic Math

Faced with rising fax costs, a firm issued a guideline thattransmissions of 8 pages or more should be sent by 2-day mailinstead. Exceptions are allowed, but they want the average to be 8or below. The firm examined 37 randomly chosen fax transmissionsduring the next year, yielding a sample mean of 10.22 with astandard deviation of 4.88 pages.

(a-1)
Find the test statistic. (Round your answer to 4 decimalplaces.)

  The test statistic

(a-2)
At the .01 level of significance, is the true mean greater than8?
No
Yes

(b)
Use Excel to find the right-tail p-value.(Round your answer to 4 decimal places.)

  p-value

Answer & Explanation Solved by verified expert

4.4 Ratings (640 Votes)

Before we go onto solve the problem let us know a bit about ttest andpvaluePValueThe choice of a specific value of is completely arbitrary andis determined by nonstatistical considerations such as thepossible consequences of rejecting H0 falsely and theeconomic and practical implications of the decision to rejectH0 There is another value associated with a statisticaltest it is 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