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A multiple regression line was calculated in which x1 was a student's grade point average and x2 was a student's age. The multiple regression line was calculated as y' = -18.7 + 46.3 x1 + 7.28 x2. If a student has a grade point average of 5.9 and is 20 years old, what is the predicted value of?
hemmingway inc. is considering 5million research and development rampd project. profit projections appear promising but
Assume the observed value of the test statistic is 1.53. What is the smallest level for which there is sufficient evidence to reject H 0 (i.e. the p-value for this test)?
Suppose that 30% of the population has black hair. In a randomly-selected group of six people, how probable is it that
In a statistics lecture, students are asked whether or not they enjoyed doing statistics. Random sample of 50 students was taken and 30 of them said that they enjoyed doing statistics.
consider the following frequency distribution for a sample of 40 observationsclass frequency0-4
How many questions must the test contain in order to reduce the standard deviation of Julie's proportion of correct answers to one-fourth its value for an 100-item test?
based on the u.s. bureau of justice data 16 of persons arrested are women. if 400 arrest cases are randomly selected
The MacBurger restaurant chain claims that the waiting time of customers for service is normally distributed,
suppose that a telephone solicitor for a particular charity makes 10 random calls. she estimates that there is 20
rotter partners is planning a major investment.nbspnbspa probabilistic estimate gives the following distributionin
How large a sample is needed to estimate the true proportion of covered children with 90% confidence with a confidence interval of .05.
Find a 95% confidence interval for the mean daily caloric intake. Interpret this interval.
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