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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. What will happen to the mean and the median scores of the class? Explain.
We have a deck of 52 playing cards. What is the probability of drawing?
What does it mean to say that a particular value of x has a z-score of -2.1?
What is coefficient of determination? Calculate F statistic. (Hint: You must complete the table to answer the question.)
Compute the appropriate Test Statistic to test null hypothesis that mean of population is 4.3 against alternative hypothesis μ ≠ 4.3.
Ten members of a fraternity take a statistics course. Here are their scores on the first exam in the course:
Utilize a test of the difference among proportions when answering these questions. Illustrate the research hypothesis.
The only difference is that the first group is comprised of athletic persons and the second of non-athletic ones.
The major shopping areas in community of Springdale include Springdale Mall, West Mall, and downtown area on Main Street. A telephone survey has been conducted to determine strengths and weaknesses of these areas and to find out how they fit in th..
Create a 99 percent confidence interval for mean daily intake of milk. You may suppose daily intake amounts are usually distributed.
Company A is hoping to expand its operations and a small group of investors is visiting next week. You are tasked with the duty of explaining how Company A uses this information from a linear programming model to optimize its shipping.
To demonstrate the effectiveness of the drug, a researcher selects a sample of n = 25 children diagnosed with the disorder and measure each child's attention span before and after taking the drug.
At a = 0.05, can you reject claim that at least 52% of adults are more probable to purchase a product when there are free samples?
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