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A pharmaceutical company wanted to estimate the population mean of monthly sales for their 250 sales people. Forty sales people were randomly selected. Their mean monthly sales were $10,000 with a standard deviation of $1000. Construct a 95% confidence interval for the population mean.
A certain researcher thinks that the proportion of women who say that female bosses are harshly critical is greater than the proportion of men.
Use value you found in part a to find out degree of confidence for interval 65.65
Suppose the time necessary to process an application for a license plate for a newly purchased vehicle is normally distributed with mean of 6 minutes and standard deviation of 1.5 minutes.
Can you think of an example where regression analysis can be used? How is regression analysis being used in a retail environment, or how should it be used?
A randomized block design with 4 treatments and 5 blocks produced the following sum of squares values: SST = 1951, SSTR = 349, SSE = 188. The value of SSB must be:
You are estimating the install hours for an electronics upgrade based on the number of components affected. The upgrade for which you are estimating affects 25 components. Given the following equation, select the correct response from each pair.
What is the OR of getting cancer fora late child birth woman compared to an early first birth woman?
Seventy-five percent of households say they woud feel secure if they had $50,000 in savings. You randomly select 8 households and ask them if they would feel secure if they had $50,000 in savings.
Address additional types of quantitative research recommendation to enhance the validity and reliability of the research findings.
Relatively speaking, who performed better on the test, you, with an 86, or your friend? Why?
Bob Billy is an operations analyst for Dollar-Does-It stores based in Iva, SC. He is currently studying the order and stocking policies for top-selling toy.
What measurements assesses the amount of variance of change in the dependent variable reflected by changes in the independent variable?
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