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A basketball player makes 39% of her shots from the free throw line. Suppose that each of her shots can be considered independent and that she takes 5 shots. Let X = the number of shots that she makes. What is the mean for X?
If a sample of 8 bulbs are selected, what is the probability that 6 or more of them are not defective.
Describe what happens when the sample standard deviations get smaller and discuss the effects of decreasing the sample size
Suppose that the probabilities are 0.5, 0.25, 0.15, and 0.10 that 0,1,2, or 3 students are absent from a certain class on any day.
A ratings service would like to know, within 5 percentage points and with 95% confidence, the percentage of these households who tune in to the first episode of a network miniseries. How many television households must be included in the sample?
Researchers are testing the effectiveness of two pain relief medicines for headaches.
Using this he gives a cost estimate of $24,000 for a new order for 500 units. Is this a reasonable cost estimate? Explain why or why not. Looking at the data on file, can you give a better cost estimate?
In a survey of 2769 adults, 1441 say they have started paying bills online in the last year.Construct a 99% confidence interval for the population proportion. Interpret the results.
which of the following describes the effect of increasing sample size?measures of effect size and the likelihood of
find the z-scores for which 12 of the distributions area lies between -z and zuse a comma to separate answers as
The report should include error metrics, including estimated model performance out-of-sample (more on that later).
What is the probability that the cereal would be high calorie? In other words, what is P (high calorie)?
In a certain college the geographical distribution of men students is as follows: 50% come from the East, 30% come from the Midwest
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