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Question: Sampling methods. Consider each of these situations. Do you think the proposed sampling method is appropriate? Explain.
a) We want to know what percentage of local doctors accept Medicaid patients. We call the offices of 50 doctors randomly selected from local Yellow Page listings.
b) We want to know what percentage of local businesses anticipate hiring additional employees in the upcoming month. We randomly select a page in the Yellow Pages and call every business listed there.
you scored 0.5 standard deviations above the mean on the previous quiz. what percentage of your fellow students scored
For events A and B, Pr(A intersection B) = p, Pr(A' intersection B) = P - 1/8 and Pr(A intersection B') = 3p/5. If A and B are independent, then the value of p is ___.
components of a certain type are shipped to a supplier in batches of ten. suppose that 70 of all such batches contain
A defective picture tube was discovered in the latest shipment. What is the probability that it came from Tyson Wholesale?
Mr. James McWhinney, president of Daniel-James Financial Services, believes there is a relationship between the number of client contacts and the dollar amount of sales.
suppose that weights of american adult males is normally distributed with mean 165 pounds and standard deviation 15
suppose that 79 of college men and 75 of college women were employed last summer. a sample survey interviews srss of
A powerful women's group has claimed that men and women differ in attitudes about sexual discrimination. A group of 50 men (group 1) and 40 women (group 2) were asked if they thought sexual discrimination is a problem in the United States.
Let X[n] be a wide sense stationary, discrete random process with autocorrelation function and let C be a constant- Find the autocorrelation function for the discrete random process .
It could not do anything with the airport and suffer a loss of revenue. The current value of raised revenue from a new airport is in question.
in a survey of 1954 cellphone owners adults aged 18 and over 743 reported that they use their phone to keep themselves
a study indicates that in ca 36 of people ages 17 to 26 have at least one tattoo.you randomly sample 30 people in that
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