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In Problem, test the hypothesis that the daily number of failures has a Poisson distribution.
A random sample of 500 migrant families was classified by region and income (in units of $1,000). The following data resulted.
Income
South
North
0-10
42
53
10-20
55
90
20-30
47
88
>30
36
89
Determine the p-value of the test that a family's income and region are independent.
is there a significant difference in the level of community service participation between college and high school
question a survey of the opinions of property owners about a street widening project was taken to determine whether the
Test the claim of the brewery about the mean volume equal to 32 oz. at the 0.05 significance level. It's your choice whether to use z or t.
The ground floor of the campus building, what is the probability that at least 3 students selected are undergraduate students?
Consider the results of the hypothesis test you conducted above. Which of the two types of errors could you have committed? Explain the ramification of committing such an error in the context of this scenario.
an engineer commutes daily from his suburban home to his midtown office. the average time for a one way trip is 24
The file tax contains the quarterly sales tax receipts (in thousands of dollars) submitted to the comptroller of the village fair lake for the period of ending March 2011 by all 50 Business establishments in that locale
Suppose that nine additional firms will be added to the bankruptcy rolls during the next quarter. How many of those failures are likely to be attribute to fraud?
Using bar charts to compare observed frequencies between variables can be problematic when?
1. an automated weight monitor can detect under filled cans of beverages with probability 0.98. what is the
students who live in the dorms at a college get free t.v. service in their rooms but only receive 6 stations. on a
Construct a bar and pie chart to graphically display these data by using Microsoft excel.
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