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For a study that consists of personal interviews with participants (rather than mail or phone surveys), explain why simple random sampling might be less practical than some other sampling methods.
A. A simple random sample requires selecting each person one at a time
B. A simple random sample does not work with personal interviews
C. A simple random sample could be influenced by selections biases
D. A simple random sample would be less practical for personal interviews because of travel costs (unless the interviews are paid to go to a central interviewing location.)
Determine the relationships among data above? Analyze with charts/graphs/tables and a discussion.
If a card is drawn at random from a standard 52-card deck, what is the probability that the card drawn is one of the following?
Generate a relative frequency histogram using ten-point intervals to show the distribution of the scores.
The DPMO for process is 860. Find the approximate Six Sigma level of the process?
A power of 0.2203 can be interpreted to mean there is a 22.03% chance of selecting a sample whose sample mean is larger than 166.3 lb.
Regression - What factors predict duration of dyspnea in elders with heart failure?
Solve the equations using linear algebra
You read a report that says, "On the basis of the simple random sample of 100 high school seniors that took the SATM test this year, a confidence interval for µ is found to be 512.00 ± 25.76." What was the confidence level used to calculate this..
Determine the probability that each of the 30 students will get computer in working condition?
Using symbols mention null hypothesis and alternative hypothesis.
Estimate using three day weighted moving average. Estimate sales for the next day using a three-day weighted moving average where the weights
a. Is there evidence the mean amount is different from 1.0 gallon (alpha= 0.01)? b. Compute the p-value and interpret its meaning. c. construct a 99% confidence interval estimate of the population mean amount of paint.
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