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Choosing the appropriate random variable type for the given data:
Question: Which of these variables are discrete and which are continuous random variables?
a) The number of new accounts established by a salesperson in a year.
b) The time between customer arrivals to a bank ATM.
c) The number of customers in Big Nick's barber shop.
d) The amount of fuel in your car's gas tank.
e) The number of minorities on a jury.
f) The outside temperature today.
Part 1. What is the appropriate distribution for such data? Part 2. Is this lot anomalous?
An experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield. There were 64 plots, and each of the 16 factor combinations was randomly assigned to 4 plots.
Assume the researcher's rats can be considered an SRS from the population of all laboratory rats. The mean Math SAT score of these students is found to be 560, 80 points higher than the national average.
Sample data recently collected indicate that Dough Boy's crusts average 30 centimeter in diameter, with a standard deviation of 1.1 centimeters.
Compute mean and standard deviation for sample of N = 8 females and sample of N = 8 for males.
We are establishing a quality control program for a process and need to establish the mean and standard deviation for the process. The first 10 batches had samples of size 5 taken.
We want to know if his support has decreased. In computing a test of hypothesis with , what is the estimate of the overall proportion?
Which of the following is the appropriate conclusion from carrying out these multiple comparisons
Suppose we wish to test the null hypothesis that there are no differences among the proportion of men and women who developed a rash. Evaluate the P-value of the chi-square test of this hypothesis.
An advantage of the permutation test over the t test for a difference in means, can Permutation tests be used for tests when we believe the two populations differ under the null hypothesis.
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
The sample mean of the number of spots on the 6000 rolls, should be about If this die is rolled 6000 times, the number of times we get a 2 or a 3 should be about
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