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In a Sgallop poll of 1012 randomly selected adults, 9% said cloning of humans should be allowed. Use a .05 significance level to the test claim that less than 10% of all adults said that cloning should be allowed. Accept or reject the null hypothesis?
A sample of n observations is taken from a population. When performing statistical inference about a population variance, the appropriate chi-square distribution has:
Create the 95% confidence interval about mean value of y, number of days absent, given x = 95 degrees, and = 0.449x - 30.27
Is the number of children that a college student currently has independent of the type of college or university being attended?
Use the binomial distribution to determine the probability that a student will get at least 8 out of 10 questions on a ten question multiple choice test correct by just guessing if each question has four
For the set of data below construct a grouped frequency distribution that as well contains the real limits of each interval, midpoint of each interval, the cumulative frequency,
At the .05 significance level, can the developer conclude there is a difference in the mean income? Use the five-step hypothesis testing procedure.
Of the adults in Jefferson County, 10% have had CPR training
Assume that a simple random sample is selected from a normally distributed population. Use either the P-value method or the traditional method of testing hypotheses.
You are a realtor with a small business. You use a simple 2 variable linear regression analysis for quick first glance house price estimates using square footage of the house.
What fraction of the calls last between 4.2 and 5 minutes?
You want to show an increase in buying and selling of single-family homes this year when compared with last year's rate.
Testing equality of variances - evidence of a difference in the variability of monthly talking time on cell phones for men and women?
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