Question

# A technician compares repair costs for two types of microwave ovens (type I and type II)....

A technician compares repair costs for two types of microwave ovens (type I and type II). He believes that the repair cost for type I ovens is greater than the repair cost for type II ovens. A sample of 34 type I ovens has a mean repair cost of \$74.06. The population standard deviation for the repair of type I ovens is known to be \$11.92. A sample of 31 type II ovens has a mean repair cost of \$67.45. The population standard deviation for the repair of type II ovens is known to be \$18.56. Conduct a hypothesis test of the technician's claim at the 0.05 level of significance. Let μ1 be the true mean repair cost for type I ovens and μ2 be the true mean repair cost for type II ovens.

That is , there is sufficient evidence to conclude that the repair cost for type I ovens is greater than the repair cost for type II ovens.

#### Earn Coins

Coins can be redeemed for fabulous gifts.

##### Need Online Homework Help?

Most questions answered within 1 hours.

##### Active Questions
• Jocko Johnson Age Gender Height Weight Body Fat % 30 Male 73 inches 200 18 Jocko...
• QUESTION 41 Use the following scenario and data for questions 41 to 45: The distribution of...
• Use the method of Lagrange multipliers to find the minimum value of the function f(x,y,z)=x2+y2+z2 subject...
• Suppose we repeatedly take samples of size 100 from the population distribution, calculate a sample mean...
• A continuous random variable X has the following probability density function F(x) = cx^3, 0<x<2 and...
• The following is a December 31, 2018, post-closing trial balance for Culver City Lighting, Inc. Account...