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1. A small college has 500 Freshmen, 400 Sophomores, 350 Juniors, and 300 Seniors. They wish to conduct a survey of their students and find a simple random sample of 50 Freshmen, 40 Sophomores, 35 Juniors, and 30 Seniors. The overall sample isA. a stratified sample.B. a simple random sample.C. a multi-stage sample.
2. In a controversial election district, 73% of registered voters are Democrat. A random survey of 500 voters had 68% Democrats. Are the bold numbers parameters or statistics?A. Both are statistics.B. 73% is a parameter and 68% is a statistic.C. 73% is a statistic and 68% is a parameter.
3. Which sample size will give the least bias to a statistic?A. n = 100B. n = 500C. We don't know.
Use the list of random digits below to assign 4 men and 2 women to the shark fin treatment. Read the table from left to right, first selecting the 4 men and then the 2 women. Use the numerical labels given in the chart to the names.
All but one of the following statements contain a blunder. Which one does not contain a blunder
Ten students were sampled at random from a student population. Each was asked how many courses he or she was planning on studying in the upcoming year. The following is a list of the reported data values: 1, 2, 2, 3, 4, 5, 5, 5, 5, 6 What is the vari..
MATH1550H: Assignment: Question: Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form
Solve the equations using linear algebra
Describe the sampling distribution of the sample proportion
A study sponsored by American Express Co. and the French government tourist office found that old American stereotypes about French unfriendliness weren't true.
A statistics instructor wants to know which route will get her to school the fastest. Each day from October 2 to November 15, when she gets to the turn point she checks the odometer on her car
A teacher gave a 25 question multiple choice test. After scoring the tests, she computed a mean and standard deviation of the scores. The standard deviation was 0. Based on this information
Distinct random variable
Find out optimal decision
P-value to test hypotheses,
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