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Create a histogram for the following data of the number of miles from residence to place of employment for 30 randomly selected residents of Middletown County.
0.6 1.4 1.8 2.4 3.2 3.7 4.4 4.6 5.2 5.3
5.4 5.6 5.9 6.1 6.5 6.7 7.2 7.7 8.3 9.5
10.3 11.4 13.5 14.7 15.6 18.5 24.6 37.8 42.5 45.3
Advertisers need to know which age groups are likely to see their ads. Purchasers of 120 copies of Cosmopolitan are shown by age group, (a) Make a bar chart and describe it. (b) Calculate expected frequencies for each class.
What is the point estimate of the mean planned expenditure by all Americans taking long summer vacations in 2002?
To find out the alternate hypotheses also critical value. A truck dealer claims where a new model will give trouble free service for at least 15,000 miles.
Create a frequency table for the total number of people that prefer each type of music:
Give null and alternative hypotheses for this test in symbolic form.
Determine the probability that the project will be completed in 80 days or less.
Using Non-parametric test, whether there is significant difference in the motor coordination skills.
Determine the probability that person selected has blood type O? Given that person selected is a male, determine the probability that their blood type is AB?
Construct a 95 percent confidence interval for the true mean.
A school administrator randomly selects 12 classes from your school and then selects all of the students of those classes to study a school library issue. Which type of sampling design is being used.
To test whether the significant difference between two proportion test using large sample test.
The sample information is reported below. At the .10 significance level can we conclude that there is a difference in the amounts quoted?
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