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The reliability coefficient for a test is determined to be 0.84. The standard deviation is 11. The mean for the test is 54. What is the maximum validity for the test?
What is the standard error of measurement for the test?
What range of scores would you expect an individual who made 54 on the test to make on another test of similar difficulty? Assume you want to be 68% accurate in your estimate.
The mathematics SAT scores of the seven students in a mathematics seminar are 533, 553, 578, 586, 619, 626, and 633. Suppose that the student with the score of 533 drops the seminar and is replaced by a student with a score of 765.
Determining the probability that the two choose the same number?
Joe has started an iphone booth in the mall. His francise booth and other startup costs total $82,000. Joe expects to pay $240 per iphone unit and sell them for $390 each. Joe needs to reach a 10% profit margin.
The weights (in pounds) of a sample of five boxes being sent by UPS are: 12, 6, 7, 3, & 10.
You will investigate four different scenarios of population growth also decline in this town. Graph the model as well as investigate it by four different growth models.
Given CAPM as the benchmark, is either of the two managers over-performing the market? What if you use the Sharpe Ratio as benchmark? Explain the answer carefully.
National average for 2-year leases is 30,000 miles. Select the suitable hypothesis.
According to the regional bar assoc., 60% of people who take the bar exam pass. Find the approximate probability that at least 61% of 200 randomly selected people taking the bar will pass. Round to three decimal places as needed.
There is a statistical deception here. Explain what is deceptive about the bar graph.
Compute the mode, median and mean for the college students and compute the mode, median and mean for the parents' data
In general, determine the standard score a measure of?
Be sure the appropriate assumptions and conditions are satisfied before you proceed.
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