Sampling error occurs when:
A) a nonstatistical sample is used.
B) the statistic computed from the sample is not equal to the parameter for the population.
C) a random sample is used rather than a convenience sample.
D) a confidence interval is used to estimate a population value rather than a point estimate.
Question 2
Suppose that a group of 10 people join a weight loss program for 3 months. Each person's weight is recorded at the beginning and at the end of the 3-month program. To test whether the weight loss program is effective, the data should be treated as:
A) independent samples using the normal distribution.
B) paired samples using the t-distribution.
C) independent samples using the t-distribution.
D) independent proportions.
Hiatal hernia. (a) The hernia occurs when the stomach protrudes through the diaphragm and into the t
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