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Correlation between the two variables.
A store manager wishes to find out whether there is a relationship between the age of her employees and the number of sick days they take each year. The data for the sample are shown below.
Age ( X)
18
26
39
48
53
58
Sick Days(Y)
16
12
9
5
6
2
Compute the value of the correlation coefficient.
Conduct an analysis of variance
The ________ is the probability of observing a sample value as extreme as, or more extreme than the value observed, given that the null hypothesis is true.
A company tracked the number of complaints it received during the first 6 months of last year, as shown in the following table:
Illustrate that probability distribution of X satisfies properties of a discrete probability distribution.
If wages were increased by $1.00, what is the expected effect on the number of complaints received per employee? How can you tell?
Their resting heart rates were measured. A partial ANOVA table is given.
State the null and the alternative hypotheses. Using the p-value approach, test to determine whether or not the mean age of all employees is significantly more than 40 years.
Describe the factors that might cause variation in weight of Tootsie Rolls during manufacture.
If 1 man aged 18-24 is arbitrarily chosen, determine the probability that his serum cholesterol level is between 165 and 200.
If they must form an ethics subcommittee of 4 members, how many different subcommittees are possible?
The populations must all be normally distributed, what is meant by normally distributed?
The Minneapolis Tribune ran an article on gender differences in shopping behavior. When 400 women were asked to respond to the question "Where I shop is influenced by which store has a greater variety," 60% answered "Yes.
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