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Verifying whether a population proportion is a pre-determined value:
My mgr needs information. I need to determine if a new product is worth marketing. At least 85 percent of the public must express interest in the product and for those that do the average cost they are willing to pay must be at least $47.50.
I survey 50 potential consumers regarding their interest in the product, 34 express an interest in purchasing it. The maximum price each would be willing to pay is shown below.
How should I respond to the request for information? Should the product be marketed?
Maximum Prices
47
62
46
43
53
34
54
45
35
65
36
32
31
25
38
37
56
48
42
63
MATH1550H: Assignment: Questions: Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.
Explain the effect outliers can have on the analysis of the center of this data set. Based on the box-plot and histogram you created for problem 1, do there appear to be any outliers?
Each egg was also measured for volume using a water displacement method. We wanted to know if the two methods agreed or not
Estimate using three day weighted moving average. Estimate sales for the next day using a three-day weighted moving average where the weights
Utilizing the .05 level, do the results support the psychologists' theory. A psychologist theorized where people can hear better when they have just eaten a large meal.
What can we conclude from these figures at a level of significance of .01?
Use the value 20 for the population standard deviation of scores on this subsection.
Advertisers need to know which age groups are likely to see their ads. Purchasers of 120 copies of Cosmopolitan are shown by age group Perform the chi-square test for a uniform distribution at α = .01
If p denotes the p -value of the corresponding hypothesis test, which of the following is true?
Using the .05 level of significance: a) Is there a difference among types of gasoline? b) Is there a difference in the cars?
Suppose that an IQ test was given to a large group of persons, the scores are assumed to be from a normally distributed population, that mean = 100 and s (standard deviation) = 15.
What percentage of bottles can we expect to have a volume less than 32 oz?
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