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A sample consist of the following n=7 scores: 5,0,4,5,1,2, and 4.
a. Compute the mean and standard deviation for the sample.
b. find the z-score for each score in the sample.
c. Transform the original sample into a new sample with a mean of M=50 and s=10.
a survey of families was done to search for variables that could predict drowning. one particular variable proved
Based on this survey, what conclusions can you reach about the use of the Internet at work.
the mean cost of a wedding is 28732. suppose the cost for a wedding is normally distributed with a standard deviation
suppose scores on an iq test are normally distributed. if the test has a mean of 100 and a standard deviation of 10
an investigator wants to test if there is a difference in endotoxin levels in children who are exposed to endotoxin
according to usa today snapshot 3 of americans surveyed lie frequently. you conduct a survey of 500 college students
How many, if 2 of the men refuse to serve together? = 56 (c): How many, if 2 of the women refuse to serve together? = 50 (d): How many, if 1 man and 1 woman refuse to serve together?
How much time should be allowed if we wish to ensure that at least 9 out of 10 students (on average) can complete it? (round to the nearest minute).
According to accountemps inc. 48% of all executives believe that employees are most productive on Tuesdays. a random sample of 200 executives is taken for a study.
The standard deviation of test scores on a certain achievement test is 11.3. If a random sample of 81 students had a sample mean score of 74.6, find a 90 percent confidence interval estimate for the average score of all students.
The price of a book depends on the length. Let the random variable C denote the price of a book in dollars. If C = 4 + 0.1*P, what is the expected value of the price of a book?
Discuss the major types of mergers and explain why they occurred. Will mergers continue to occur in the rail industry? Why or why not?
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