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Sam Hill, Director of Media Research in Christchurch, is analysing subscribers to the Fish & Game New Zealand magazine. He wonders whether subscriptions are influenced by the head of household's employment classification. His staff prepared the following contingency table from a random sample of 300 households. Head of Household Classification Clerical Managerial Professional Subscribes Yes 10 90 60 No 60 60 20
Kind of examination produced significant main effects on both mean mark and time taken to complete the examination.
If all 3 eggs are good, the crate is shipped, otherwise it is rejected. what is the probability that a crate will be shipped if it contains 120 eggs, ofwhich 10 have blood clots?
I have been asked to suppose that faculty at my college are assigned overload courses hence additional compensation beyond the required contract hours based on seniority.
Public transportation and the automobile are two methods an employee can use to get to work each day. Samples of times recorded for each method are shown. Times are in minutes.
Serum cholesterol levels were taken from a population of 10,000 college students. The results were normally distributed. Males had a mean of 195 and a standard deviation of 10.
Based on the information above, estimate the mean and standard deviation of the weight of the pain killer in each bottle.
Create a contingency table for this data: In a "taste test" fourteen men showed a preference for Coke an the same number showed a preference for Pepsi.
Find the probability distribution for X defined as the number of defective items drawn (Hint: You have to find P(X=0), P(X=1) and P(X=2). You may have to use both multiplicative and additive rules to find P (X=1)).
The following data represents the amount of time ( in minutes ) that a person had to wait for a bus to work on a random sample of 5 working days.
What is the probability that the wait for the second student will be 15 minutes or less (to 4 decimals)? What is the probability that the wait for the second student will be between 15 and 45 minutes (to 4 decimals)?
Plot the sales data as a time series and do you think this series is stationary or nonstationary
Find the 99% confidence interval for the population proportion.
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