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What is the probability of drawing exactly three jacks when drawing a 5 card poker hand, without replacement, from a full deck of cards (52 total cards)?
Let Y(sub-1) be the sales during month t (in thousands of dollars) for a photograph studio, and let P(sub-t) be the price charged for the portraits during month t. The data are included in the file provided below.Use regression to fit the followin..
suppose that there are a total of 18 students in an elementary school class. the teacher assigns each of the students a
Set up a hypothesis test - State the null and alternative hypothesis and Confidence intervals of scores and the z or t intervals. Do a P test. Are the two tests consistent
In a sample of 80 M&Ms -> the probability that more than 23% of them will be orange?
If 100 people are exposed to the ad, what is the probability that at least 20 of them will try the product in the following four months?
What is the expected value of the sampling distribution model for the proportion of 480 freshmen that will return to the same school for their sophomore year?
Some of the methods in this section are approximations rather than exact probability results. We have given rules of thumb for safe use of these approximations.
The mean age at which a US consumer purchases their first car is 20.2 years. The standard deviation is 2.1 years. For a random sample of 50 first-time car buyers, what is the likelihood that the average age for this sample would be over 21 years o..
You want to test the hypothesis that the mean age for teachers is equal to 50. If you take a sample of 64 observations and find a sample mean of 49
For a one tailed hypothesis test (upper tail), the p-value is computed to be 0.034. If the test is being conducted at a 95% confidence, the null hypothesis.
question during a period of one month a random sample of 27 approved life insurance policies is selected and the
Synthesis and evaluate findings and present same in a professional manner to a varied audience
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