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According to the Federal Reserve Board, the average credit card debt per U.S. household was $8,565 in 2008. Assume that the distribution of credit card debt per household has a normal distribution with a standard deviation of $3000.
a. Determine the percentage of households that have a credit card debt of more than $13,000.
b. One household has a credit card debt that is at the 95th percentile. Determine its credit card debt.
The 30 members of an orchestra were asked how many instruments each could play. The results are set out in the frequency distribution. Calculate the mean number of instruments played:
What is the point estimate of the difference between the population mean expenditure for males and the population means expenditure for females?
Paul has calculated the indifference probability for the lottery having a payoff of $160K with probability p and -$80K with probability (1-p) as follows:
How does your sample compare to this theoretical distribution of sample means and what are the mean, variance, and standard deviation of the observations in your sample?
Find out the decision strategy company must follow, expected value of strategy, and maximum amount the company must pay market research firm for survey results.
Do the above values appear to be in statistical control, justify your answer?
Test the hypothesis that there is no difference between the means of retailers (α= .05). Select a multiple comparison test, if necessary, to determine which groups differ in mean sales (α= .05).
At α = 0.10 test the claim that there is a difference in means of the salaries. (a) State the Hypotheses: (b) Compute the Test statistic: (Round off correctly)
What is the probability of this project being completed earlier than 19 days?
If a student is randomly selected what is the possibility that the student is male and from out of state.
Are there any formulas or graphs for Correlational statistical procedures and Quantative research methods? I'm writing a paper and would like to throw in a few examples with explanation.
A hypothesis test is to be used to help determine if there is a difference between the proportion of 2 year college students and private university students that work at least 20 hours per week.
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