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Household income does not tend to follow a normal distribution in a particular state, yet average income is approximately $45,000/year in this state, with a standard deviation of about $9000. At least what percentage of household incomes in this state is likely to be between $18,000 to $72,000/year? Show your work as to how this is obtained.
What sample size would be required to obtain the error of ±10 square millimeters with 99 percent confidence?
The 95% confidence interval for the mean of the sampling distribution of the mean is about:
Compute the within group variability. Do you require any post hoc testing? Why or why not? Decribe in detail.
Bingo Hamburger Co has a chain of 12 stores in a large city. Sales figures and profits for the stores are given in the following table. Obtain a regression line for the data & predict profit for a store assuming sales of $10 million.
The Travel Weekly International Air Transport Association survey asked business travelers regarding the purpose for their most recent business trip.
What quantitative method can be applied to help the Department make the decision? Outline how this method can be applied and explain how a qualitative method can also be applied to help the Department make the decision
Roper ASW conducted a survey to learn about American adults' attitudes toward money and happiness. 56% of respondents said they balance their checkbook at least once a month.
Calculate a 3-month moving average forecast for months 4 through 9 also Compare the two forecasts by utilizing MAD. Which forecast appears to be more accurate.
The largest value in a set of data is 160, and the smallest value is 70. If the resulting frequency distribution is to have six classes of equal width, what will be the class interval?
Conduct a matched pairs t-test to see if the differences in locations is significant - The air in poultry-processing plants often contains fungus spores.
Find out the forecast value utilizing three month moving average method, weighted moving average method, exponential smoothing and regression methods.
Below are scores for 10 randomly selected students on each exam. 95% confidence interval for the mean scores on?
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