The assumption of normality is primarily concerned with ______.

A) the difference between two sample means
B) the shape of the distribution of the dependent variable
C) how samples are drawn from populations
D) the difference between a sample mean and a population mean

What is the term for a Wage and Tax statement and what is its purpose?

Carrie Umholtz held a $3,200, 105-day note dated July 7, bearing interest at 9.6%. On August 11, Carrie took the note to a finance company which discounted it at 11.3%. Use a 365-day year to find the missing information on the loan.
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The differences between frequency distributions and normal distributions reflect the difference between ______ and ______.

A) descriptive statistics; inferential statistics
B) analyzing data; examining data
C) testing hypotheses; proving hypotheses
D) the mean; the standard deviation

A deposit slip from Commercial Bank of Oakland shows a total deposit of $1,078.42. The cash received line shows $70.00. Compute the net deposit shown on the deposit slip.

A marketing survey involves product recognition in Ontario and British Columbia.Suppose the proportion of Ontario residents who recognized a product is $\mathrm{P}1$ and the proportion of British Columbia residents who recognized the product is $\mathrm{P}2$ .The survey found a 98% confidence interval for $p_1-p_2$ is $(-0.023,-0.019)$ Give an interpretation of this confidence interval.

A) We know that 98% of British Columbia residents recognized the product between 1.9% and 2.3% more often than Ontario residents.
B) We know that 98% of Ontario residents recognized the product between 1.9% and 2.3% more often than British Columbia residents.
C) We are 98% confident that the proportion of British Columbia residents who recognized the product is between 1.9% and 2.3% higher than the proportion of Ontario residents who recognized the product.
D) We know that 98% of all random samples done on the population will show that the proportion of British Columbia residents who knew the product is between 1.9% and 2.3% higher than the proportion of Ontario residents who knew the product.
E) We are 98% confident that the proportion of Ontario residents who recognized the product is between 1.9% and 2.3% higher than the proportion of British Columbia residents who recognized the product.