In a problem involving the hypergeometric distribution, the probability of success remains the same from trial
to trial.
Indicate whether the statement is true or false
Q. 2A food packaging company must maintain a consistent weight per can. A quality control engineer randomly selects 60 cans of corn of the same size and records the weight of each.
a. Identify the population of interest.
b. Describe the sample.
c. What is the variable of interest? Is it quantitative or qualitative?
Q. 3If the multiple correlation coefficient is 0.80, then the proportion of total variation in y that can be attributed to
the xs is _______ .
Fill in the blank(s) with correct word
Q. 4When we are comparing two populations and our two samples are such that each element of one sample
relates to a particular element of the other sample, an appropriate nonparametric test would be the
A) one-sample sign test. B) signed-rank test.
C) Wilcoxian test (rank sums). D) U test.
Q. 5The variance of the sampling distribution can be equal to the variance of the population.
Indicate whether the statement is true or false
Q. 6Can watching a movie temporarily raise your pulse rate? Researchers have 50 volunteers check their pulse rates. Then they watch an action film, after which they take check their pulse rates once more.
Which aspect of experimentation is present in this research?
A) blinding
B) randomization
C) a placebo
D) a control group
E) none of these
Q. 7In constructing a frequency distribution from raw data, there will usually be between _______ and _______
classes.
Fill in the blank(s) with correct word
Q. 8The expected value with perfect information is calculated by subtracting the maximum expected profit under
uncertainty from _______ .
Fill in the blank(s) with correct word