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The following data represent a random sample of end-of-year bonuses for lower-level managerial personnel employed by a large ?rm. Bonuses are expressed in percentage of yearly salary.
Female
6.2
9.2
8.0
7.7
8.4
9.1
7.4
6.7
Male
8.9
10.0
9.4
8.8
12.0
9.9
11.7
9.8
Test for equality of variances. State any assumptions you have made, and interpret your result.
a dean of a business school wants to know if the proportion of graduates who use statistical inference within the first
for a standard normal probability distribution find the percentage of data that area within 1 standard deviation of the
what is the value for x2left for a 95 confidence interval when n 18?a. 7.564b. 8.672c. 9.390d.
compare to the theoretical probability?
brian smith sells a set of movie posters 12 and baseball cards 8 at a local flea market. on last sunday brians total
Which of the following assumptions is not made for the F-test for comparing three or more means?
andy always goes to work at 7 oclock. each day he either drives to work or takes the light rail to work. if andy drives
Use the chi-square test of independence with a .05 level of significance to analyze the data. What is your conclusion?
Use normal disrtibution of fish lengths for which the mean is 8 inches and the standard deviation is 5 inches. Assume the variable x is normally distributed.
computing the z scores for the given data.a population consists of the following n 5 scores 0 6 4 3 and 12.1. compute
What is the probability that Susan passes on the first try? What is the probability that Susan first passes on the second try?
In a class roster of 18 students, what are the chances that there are at least 2 people with the same birthday (same day, not same year)?
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