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How old are college students? The national age distribution for college students is shown below. National Age Distribution for College Students Age Under 26 26-35 36-45 46-55 Over 55 Clients 39% 25% 16% 12% 8% The Western Association of Mountain Colleges took a random sample of 212 students and obtained the following sample distribution. Sample Distribution, Western Association of Mountain Colleges Age Under 26 26-35 36-45 46-55 Over 55 Number of Students 65 73 41 21 12 Is the sample age distribution for the Western Association of Mountain Colleges a good fit to the national distribution? Use alpha = 0.05. Find the P-value of the sample test statistic.
If 20 customers were selected at random during one business day, what is the probability that at least 11 of them did not order a pastry with their drink.
Batch is acceptable. What sample size is recommended for the hypothesis test? Use 30 hours as an estimate of the population standard deviation.
A study regarding the relationship between age and the amount of pressure sales personnel feel in relation to their jobs revealed the following sample information.
Identify the population parameter of interest in the survey. Give a point estimate of the population parameter. Set up H0 and Ha for testing whether the true percentage of TV viewers who find cable news to be better quality than network news differs..
a multiple-choice test consists of 77 questions with possible answers of a b c d e. estimate the probability that with
Suppose that you wish to perform a nonparametric test for a difference among the medians of three or more independent populations. Which of these tests would be appropriate?
Using the data file below, construct a histogram and a frequency polygon. Describe the shape of this distribution.
For the following statement, write the null hypothesis and the alternative hypothesis. Then, label the one that is the claim being made.
Complete the exercise to determine if one store is better than the other in terms of mean family grocery price using a = .05. Clearly tell which is better if you decide this is appropriate.
If a player enters one lottery each week, what is the expected number of weeks until a player matches all 6 numbers in the state's sample?
for a particular brand of seed on the average 10 of the seeds do not germinate. find the probability distribution for a
Solve the equations using linear algebra
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