Business, 25.03.2020 23:55 genyjoannerubiera

A taxi company manager is trying to decide whether the use of radial tires instead of regular belted tires improves fuel economy. Twelve cars were equipped with radial tires and driven over a prescribed test course. Without changing drivers, the same cars were then equipped with regular belted tires and driven once again over the test course. The gasoline consumption, in kilometers per liter, was recorded as follows:
Kilometers per Liter Car123456789101112Radial Tires4.24.76.67.06.74.55.76.07.44.9 6.15.2Belted Tires4.14.96.26.96.84.45.75.86.94.7 6.04.9
Can we conclude that cars equipped with radial tires give better fuel economy than those equipped with belted tires? Assume the populations to be normally distributed. Use a P-value in your conclusion.

Answers: 3

Show answers

Another question on Business

Business, 22.06.2019 21:40

Engberg company installs lawn sod in home yards. the company’s most recent monthly contribution format income statement follows: amount percent of sales sales $ 80,000 100% variable expenses 32,000 40% contribution margin 48,000 60% fixed expenses 38,000 net operating income $ 10,000 required: 1. compute the company’s degree of operating leverage. (round your answer to 1 decimal place.) 2. using the degree of operating leverage, estimate the impact on net operating income of a 5% increase in sales. (do not round intermediate calculations.) 3. construct a new contribution format income statement for the company assuming a 5% increase in sales.

Answers: 3

Answer

Business, 22.06.2019 22:30

Perry is a freshman, he estimates that the cost of tuition, books, room and board, transportation, and other incidentals will be $30000 this year. he expects these costs to rise about $1500 each year while he is in college. if it will take him 5 years to earn his bs, what is the present cost of his degree at an interest rate of 6%? if he earns and extra $10000 annually for 40 years, what is the present worth of his degree.?

Answers: 3

Answer

Business, 23.06.2019 01:00

Apopular low-cost airline, parson corp., has gone out of business. although the service and price provided by the airline was what customers wanted, the larger airlines were able to drive the low-cost airline out of business through an aggressive price war. which component of the competitive environment does this illustrate?

Answers: 3

Answer

Business, 23.06.2019 20:00

What would happen in the market for knee replacement surgery if insurance companies started to cover a smaller portion of the cost of the surgery?

Answers: 1

Answer

You know the right answer?

A taxi company manager is trying to decide whether the use of radial tires instead of regular belted...

Questions