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0.8 of all college students like the idea of a new curriculum. If we select 87 students (ASSUME INDEPENDENCE), what is the Standard Deviation of the Probability Distribution that would list the number of students (from 0 to 87) and the probability of each. If the answer cannot be calculated, enter zero (0) as your answer. Round to 4 decimal places otherwise. YES, you need, therefore, to look at the 5th decimal place.
At 0.05 level significance, is there evidence of the difference in proportion of dvds purchased on basis of the kind of media used (Mailing, E-Mail)?
Calculate the correlation coefficient and prediction equation.
Arbitron Media Research Inc, conducted a study of the radio listening habits of men and women. One facet of the study involved the mean listening time. It was discovered that the mean listening time for men was 35 minutes per day.
What is the advantage of a randomized experiment in which the investigators randomly assign treatment conditions to subject over an observational study in which the subject self-select the treatment groups?
Can we conclude that there is a difference in number of citations written between the officers? Use the 0.05 level of significance.
In optimal solution, determinethe critical path?
The MacBurger restaurant chain claims that the waiting time of customers for service is normally distributed, with a mean of 3 minutes and a standard deviation of 1 minute.
Construct the 90% and 99% confidence interval for population mean. Which interval is wider? If convenient, utilize technology to construct confidence intervals.
Assuming that the dogs did better than what would be expected with random guessing, did they do well enough to be used for actual medical diagnoses? Why or why not?
Based on this sample, is Moe correct in his assertion? Write up formal commentary of results of your test.
To be from the same population? You may assume the that follows a normal distribution. values are: 2.13 1.31 1.91 1.92 1.77 1.64 2.29 1.99 2.33 2.49 2.22
For a t distribution with 16 degrees of freedom, find the area, or probability, in each region.
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