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There is significant difference between two amounts quoted.
The president of the American Insurance Institute wants to compare the yearly costs of auto insurance offered by two leading companies. He selects a sample of 15 families, some with only a single insured driver, others with several teenage drivers, and pays each family a stipend to contact the two companies and ask for a price quote. To make the data comparable, certain features, such as the deductible amount and limits of liability, are standardized. The sample information is reported below. At the .10 significance level, can we conclude that there is a difference in the amounts quoted?
progressive
GEICO
Family
Car Insurance
Mutual Insurance
Becker
$2,090
$1,610
Berry
1,683
1,247
Cobb
1,402
2,327
Debuck
1,830
1,367
DuBrul
930
1,461
Eckroate
697
1,789
German
1,741
1,621
Glasson
1,129
1,914
King
1,018
1,956
Kucic
1,881
1,772
Meredith
1,571
1,375
Obeid
874
1,527
Price
1,579
1,767
Phillips
1,577
1,636
Tresize
860
1,188
Find the probability that a randomly selected employee earns less than $5.43.
A recent article in the Myrtle Beach Sun Times reported that the mean labor cost to repair a colour television is $90 with a standard deviation of $22. Monte's TV Sales and Service completed repairs on two sets this morning. The labor cost for the..
Can one conclude at a level of significance of .01 that the new ball has improved his game?
What are the best-case and worst-case outcomes the owner may face on this product if she implements your suggestion?
A banks loan officer rates applicants for credit. The ratings are causally distributed with a mean of 200 also a standard deflation of 50.
What sample size would be needed to obtain an error of ±10 square millimeters with 99 percent confidence?
Using the 0.95 degree of confidence, what is the interval estimate for the population proportion (to the nearest tenth of a percent)?
Determine the variance of X? (Illustrate your computation either in Table or in Equation form)
Find out the sample size raised by mean also standard deviation, a sampling distribution may approach among which of the following values.
Name the inferential statistical test that would be used for the method of training and why?
Which of the given properties doesn't apply to theoretical normal distribution?
The means appear to be very close, but not the variances. At α = .05, is there a difference in variances? Show all steps clearly, including an illustration of the decision rule.
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