What does a coefficient of correlation of 0.80 indicate?
A) Sixteen percent of the relationship between the dependent and independent variables are linear.
B) Eight percent of the variation in the independent variable is explained by the dependent variable.
C) Sixty four percent of the variation in the dependent variable is explained by the independent variable
D) Eighty percent of the variation in the independent variable is explained by the dependent variable.
Q. 2The chi-square goodness-of-fit test is usually used as a test of multinomial parameters, but it can also be used to determine whether data were drawn from any distribution.
Indicate whether the statement is true or false
Q. 3If the standard error of the sampling distribution of the sample proportion is 0.02049 for samples of size 500, then the population proportion must be either:
A) 0.2 or 0.8
B) 0.5 or 0.5
C) 0.3 or 0.7
D) 0.6 or 0.4
Q. 4What is the error term that corresponds to the 1st quarter in year 5?
A) -30.27
B) 65.36
C) 50.27
D) cannot be determined
Q. 5Outcomes such as absenteeism, turnover, safety, training effectiveness, and leadership development would be considered ________ outcomes.
A) customer-focused
B) workforce-focused
C) financial and market
D) leadership and governance
Q. 6Which value of the following values of coefficients of correlation indicates a stronger correlation than 0.50?
A) -0.40
B) -0.60
C) +0.40
D) +0.53
Q. 7A two-independent sample t-test corresponds to a Wilcoxon signed rank test for paired samples.
Indicate whether the statement is true or false
Q. 8According to the central limit theorem, the sampling distribution of the sample mean can be approximated by the normal distribution as the:
A) number of samples gets large enough.
B) sample size gets large enough.
C) population standard deviation increases.
D) sample standard deviation decreases.
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