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The probability that Emily will score an 85% on a math test is 5/7. What is the probability that she will score above 85% on exactly 3 of the 5 tests this quarter?
suppose a loaf of bread cost 1.00 in 1984 and 1.80 in 2004. what is the bread price index in 2004 using 1984 as the
question the associated press reports that the mean trading volume for equity and index options contracts was 3.6
If the population meanis to be estimated to within two days, with 95% confidence, how many outside salespeople should be sample.
Suppose also that after selecting 15 members at random we obtained the following paired observations: Use these data to find the covariance between age and the number of visits.
In an article in the Journal of Management Information Systems, Mahmood and Mann investigate how information technology (IT) investment relates to company performance.
Extreme value or is it a fairly typical sample mean? For a sample of n=36 scores, would a sample mean of M=55 be considered an extreme value or is it is fairly typical sample mean?
An appliance manufacturer produces two models of microwave ovens: the super nuker and the Micro-1000. Both models require fabrication and assembly work. The super nuker requires 4 hours of fabrication and 2 hours of assembly. The Micro-1000 requ..
What inferential statistic would you use for a independent sample with two variables?
In order to save costs, a firm issued a guideline that fax transmissions of 10 pages ormore should be sent by 2-day mail instead. Exceptions are allowed but they want theaverage to be 10 or below
the mean of the sampling distribution of means is equal to the mean of the population. t-f and why or why
In a large general education class, 60% (.6) are science majors and 40% (.4) are liberal arts majors. Twenty percent (.2) of the science majors are seniors.
A candy confectioner measures the weight of 30 pieces of candy and obtains a mean and standard deviation of 32.5 gms and 2.6 gms, respectively. Construct the 98% confidence interval for the population mean.
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