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Why do we have two versions of the addition rule we use for calculating outcomes? (Hint: what are the two types of categories that we might use in selecting a sample).
an experiment involves selecting a random sample of 283 middle managers study. one item of interest is their mean
The median of 1.50 is a better measure of the center than the mean of 34.83 because of the outlier value of 414 seconds. What is the sample variance and standard deviation for these 30 numbers?
7% chance of making $40,000; a 20% chance of making $10,000; and 70% chance of making $0. How much should you be willing to pay for this deal?
It would like to be plus or minus $10 of the true mean with a 98% confidence level. The standard deviation is thought to be $500. How many card holders should be sampled?
1. in a recent year scores on a standardized test for highschool students with a 3.50 to 4.00 gpa were normally
For commercial banks in each state, the U.S. Federal Deposit Insurance Corporation has determined the percentage of domestic assets. Construct a frequency distribution with 6 classes for this data.
Calculate the average student score necessary for the district to retain its federal funding. You may assume that the Standard Deviation will not change. This will require some thought. Think of the z score. You will be solving for mu (average test s..
a doctor is trying to determine whether her patients prefer a male nurse or a female nurse. after asking 25 male
to examine the effectiveness of its four annual advertising promotions a mail order company has sent a questionnaire to
At a state political rally, a spaker announced "we should raise test scores so that the students are above the state median". How would you analyze this statement?
Which of the following research situations is most likely to use a repeated-measures design?
Explain why comparing children whose parents chose a Montessori school with children of other parents would not show whether Montessori schools perform better than other programs?
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