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Question: Accounting Today reported that 37% of accountants purchase their computer hardware by mail order direct and that 54% purchase their computer software by mail order direct. Suppose that 97% of the accountants who purchase their computer hardware by mail order direct purchase their computer software by mail order direct. If an accountant is randomly selected, determine the following probabilities:
a. The accountant does not purchase his computer software by mail order direct given that he does purchase his computer hardware by mail order direct.
b. The accountant does purchase his computer software by mail order direct given that he does not purchase his computer hardware by mail order direct.
c. The accountant does not purchase his computer hardware by mail order direct if it is known that he does purchase his computer software by mail order direct.
d. The accountant does not purchase his computer hardware by mail order direct if it is known that he does not purchase his computer software by mail order direct.
the strength of ones immune system can be evaluated in several ways. one of the most popular methods involves measuring
If the number of trials during each experiment is 12, determine the maximum likelihood estimate for the probability of success, p.
A demonstration to verify that an item meets its reliability requirement is based on obtaining 5 successful tests. If the probability of a successful test is 0.9, find the probability that 10 tests will be required to pass the demonstration.
What is the probability that the survey will show a greater percentage of Republican voters in the second state than in the first state?
Assume that two samples are independent simple random samples selected from normally distributed populations. Use a 0.05 significance level to test the claim that male and female biology students speak the same mean number of words in a day.
The aim of this workshop is to give you some experience using standard statistical treatments of data using statistical software. The package we will use for this workshop is Minitab.
consider a study in which 41 participants were treated with an intervention. the study reported mean body weight of 140
in a study of redgreen color blindness 950 men and 2000 women are randomly selected and tested. among the men 83 have
Suppose that an automobile manufacturer designed a radically new lightweight engine and wants to recommend the grade of gasoline to use.
The Globe Fishery packs shrimp that weigh more than 1.91 ounces each in packages marked" large" and shrimp that weigh less than 0.47 ounces each into packages marked "small"; the remainder are packed in "medium" size packages.
(a) What is fX (x)? (b) What is the blind estimate B?
(a) Draw a boxplot of these data. Do you think a normality assumption is reasonable? (b) Calculate a 95% confidence interval for the mean payback period for this sort of retro-fitted double glazing. (c) How large a sample would be needed to estimate ..
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