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A group of 14 friends got together for a wine contest. Each guest brought his or her favorite bottle of pinot noir. Each wine was tasted by all 14 guests and scored on a scale from 1 (poor) to 20 (excellent). On this scale, a score of 10.5 would be average. Below are the results for Wines F and G (the labels on the bottles were covered up so nobody would know which wine they were drinking). Use the Runs Test to test the hypothesis that their median scores are not the same at a significance level of ? = 0.10.
Taster
F
G
Felix
17
9
Savannah
18
19
Gaby
12
Andrea
10
Michelle
Rory
15
14
Maggie
1
Carl
13
Amy
Seth
20
Jay
Dan
Simon
16
4
Helen
Using this information, calculate Beta risk (probability of Type II error) if the true population mean really is 77.
In order to control costs, a company wishes to study the amount of money its sales force spends entertaining clients. The following is a random sample of six entertainment expenses (dinner costs for four people) from expense reports submitted by m..
Develop a 99% confidence interval for the population mean household income, assuming a normal distribution.
What is the probability that more than 25% of the business travelers say that the reason for their most recent business trip was an internal company visit?
The mean pulse rate for males. Define the null and alternative hypothesis. SD= 18.48 pulse rate for males 25.07 women.
Suppose that the proprietor of a shop determines that 60% of her customers use a credit card, 30% pay with cash, and the rest use a debit card. What is the probability that a customer does not pay with cash?
an investigator hypothesizes that cholesterol levels in children migt be affected by educating their parents on proper
a sample of 40 cds from a students collection showed a mean length of 52.74 minutes with a standard deviation of 13.21
an internet server conducted a survey of 400 of its customers and found that the average amount of time spent online
The Boss is a small Italian restaurant with 6 waiters and waitresses. The average service time at the restaurant for a table (of any size) in 80 minutes (exponentially distributed).
Construct a 95% confidence interval for the mean amount of oil recovered from all wells in this area using t procedures - How does the t interval that you constructed compare with this interval? Should the t procedures be used with this data?
suppose a manufacturing company makes a certain item. the time to produce each item is normally distributed around a
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