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You are working with a MOE of +/-4% and a confidence level of 95%. P and Q =.50, and your CPI is $25.00. The company you work for needs to make a decision as to whether they may need different advertising for men and women. So, your supervisor wants to know if men and women differ in their response to the company's advertising. You are in charge of designing and running this research study.
Given the parameters, what will be your sample size for this study. Now, if you want to assume a MOE of at least +/-4% for men and for women, how many men and women will you want to interview? What will this particular study cost? Now, suppose you have a budget of $60,000. Is it enough for the budget? Please explain answers.
Consider the standard normal distribution. a) Use the Z table to verify that q1 is approximately -0.67 and q3 is approximately 0.67. b) Find the interquartile range for Z, and explain what this means.
Do you believe that there are differences in average output among the five plants? What is the approximate p-value? Explain.
1. in exponential smoothing if the smoothing constant alpha is 1 you will get the same forecast as obtainable using the
Determine what analysis would you do on each problem (i.e., one-sample z-test, one-sample t-test, proportion test, two-sample independent t-test, or paired test)?
Based on the standardized score in part c, about what proportion of the class scored higher than you did on the exam?
Refer to the previous two exercises. Add an additional observation with Y = 29 and X = 50 to the original data set.
some researchers in understanding g-loads on humans are interested in methods that can be used to assist pilots
Nationally, social workers average 10.2 years of experience. In a random sample, 203 social workers in greater metropolitan Shinbone average only 8.7 years
Those who advocate for monetary incentives in a work environment claim that this type of incentive has the greatest appeal because it allows the winners.
Find a five-number summary for these data.- Identify whether or not any data points would qualify to be marked as an outlier on a boxplot. If there are outliers, specify the values.
How many cars do they expect to stop before finding a driver whose seatbelt is not buckled?- What's the probability that the first unbelted driver is in the 6th car stopped?
Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places. What is the lower limit of the 90% confidence interval? What is the upper limit of the 90% confidence interval?
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