The sampling distribution of the Kruskal-Wallis test statistic is well approximated by the:
A) normal distribution.
B) chi-square distribution with k - 1 degrees of freedom, where k is the number of populations.
C) F- distribution with 1 and k - 1 degrees of freedom, where k is the number of Populations.
D) Student's t distribution with n - 1 degrees of freedom.
Q. 2What is the employer contribution at the age of 27?
A) 1,438
B) 1,925
C) 2,292
D) 1,280
Q. 3Which of the following state(s) that for any set of data, the proportion of values that lie within k standard deviations (k>1 ) of the mean is at least 1 - 1/k2?
A) empirical rules
B) interquartile range
C) Chebyshev's theorem
D) standard deviation
Q. 4Peak Previously Played Picks buys and sells used sports equipment. For the past year, the mean purchase of used sports equipment was 36 with a standard deviation of 8.
Using the Microsoft Excel function NORM.DIST, find the probability that the next person who comes in to buy used equipment will pay more than 40.
A) 30.85
B) 69.15
C) 24.20
D) 95.60
Q. 5The model yt = 8 + 2.5xt + 0.35yt-1 is estimated using regression analysis applied to time-series data. What is the effect of a 1-unit increase in x in period t?
What will be an ideal response?
Q. 6The number of work cycles started in work station 1 is ________.
A) 3.39
B) 1406.87
C) 700.69
D) 1410.90
Q. 7The total number of degrees of freedom is:
A) 29
B) 15
C) 8
D) 4
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