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Comment on the following sampling designs:
a) A citizens' group interested in generating public and financial support for a new university basketball arena has published a questionnaire in area newspaper. Readers return the questionnaire by mail.
b) A departmental store that wishes to examine whether it is losing or gaining customers draws a sample from its list of credit cardholders by selecting every tenth name.
at one time the cholesterol levels for women aged 20 to 34 follow an approximately normal distribution mean 185
perform the two anova tests. include the anova table and an explanation of your results. be sure to write full
Find the 95% confidence interval of the mean score for all 50 golfers. Find the 95% confidence interval of the mean score for all golfers if this is a sample of 80 golfers instead of a sample of 50.
A study of 20 worldwide financial institutions shows the correlation between their assets and pretax profit to be .86. At the .05 significant levels, can we conclude that there is positive correlation in the population?
Evaluate a simple aggregate price index for 2004. Use 2000 as the base period - Estimating the simple aggregate price index.
question 1based on a survey of 1000 adults by greenfield online and resported in a may 2009 usa today snapshot adults
1.which slope is more significant when i am predicting the selling price of homes based on the size of the home?a. 64
the weight of an ice-cream shops sundae special is known to be normally distributed with a mean of 0.5 pounds and a
Provide an example of two of the laws of exponents. Explain how to simplify them. Tell how do the laws work with rational exponents and then provide a third example to simplify that includes a rational (fractional) exponent.
The manufacturer of Winston Tire Company claims its new tires last for an average 40,000 miles. An independent testing agency road-tested 20 tires to substantiate the claim made by the Winston Tire Company.
1.colleges conduct student evaluations of instruction to determine if there are patterns of either excellence or the
suppose that in a certain texas town 70 of the voters are republicans 20 of the voters are democrats and 10 of the
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