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Collapse the response categories in the following tables so that it meets the assumptions of the chi-square test; than perform the test.
OWNERSHIP
Education
Owners
Non-owners
Less than grade 8
0
8
Some high school
5
9
High school graduate
30
25
Some college
10
11
College graduate
12
15
Master's degree
3
6
Ph.D. Degree
2
1
The upper limit of a 95% confidence interval for the population mean would equal:
Find the probability of getting a head and rolling a six
The resort's historical climate data suggests that the probability of a good winter with lots of snow during any given year is 40%.
ABC Corporation has been using statistical process control for several months.
The sample information is reported below. At the .10 significance level can we conclude that there is a difference in the amounts quoted?
Determine for each variable if it is the explanatory variable, the response variable, or whether it could be both.
Explain your answer to someone who is familiar with the t test for a single sample, but not with the t test for independent means.
At the end of 24 weeks of treatment, subjects were classified as responders or non-responders to treatment based on a battery of psychological tests.
In past, mean processing time was 45 days. At 0.05 level of significance, is there evidence that mean processing time has changed from 45 days?
Determine the probability that Mexican American male in the 20 -74 age range has serum cholesterol value greater than 240 mg/dl.
The student with the 92 found a grading error on her exam and her correct grade was 95. There were no other grading errors. After correcting this student's paper, the five number summary for the midterm exam will be
Basic Statistics problem
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