Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. basic math
  3. a study of the amount of time it takes a mechanic

A study of the amount of time it takes a mechanic to rebuild the transmission for...

90.2K

Verified Solution

Question

Basic Math

A study of the amount of time it takes a mechanic to rebuild thetransmission for a 1992 Chevrolet Cavalier shows that the mean is8.4 hours and the standard deviation is 1.8 hours. If 40 mechanicsare randomly selected, find the probability that their mean rebuildtime exceeds 7.7 hours.

A. 0.8531

B. 0.9634

C. 0.9712

D. 0.9931

Answer & Explanation Solved by verified expert
3.7 Ratings (436 Votes)
Solution Given    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

Other questions asked by students

Q

Use superposition to solve for applied stresses on a cantilever beam

Mechanical Engineering
Q

A PIC C code for Interfacing Ultrasonic sensor using PIC C 18F8722 microcontroller  

Electrical Engineering
Q

Compare how Griffith determined critical crack length, ac, with how the value of r*is determined in...

Mechanical Engineering
Q

This is related Risks and Resilience in Supply Chains (1) Using a focal firm with which...

General Management
Q

given an angular speed A groove is made on the surface along a radius A...

Physics
Q

A lens has a power of 5D in air What will be its power if...

Physics
Q

Graph the function f x 10 9 8 7 6 Make sure to place a...

Basic Math
Q

the fixed manufacturing costs were $19,240 and the fixed selling and administrative expenses were $8,870,...

Accounting
Q

Galvan Consulting, Inc. recently reported the following information: , Net income =$900,000 ...

Accounting
Q

2019 Basic Exam - Scenario 7: Evie Adams - Question 6 of 6. 25 Evie...

Accounting
Q

1. Use the above information to prepare a statement of cash flows for the current...

Accounting
Q

A company's market research department is working on the pricing of a product. The product...

Accounting