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A survey of 865 voters in one state reveals that 408 favor approval of an issue before the legislature. Construct the 95% confidence interval for the proportion of all voters in the state who favor approval.
The Starbucks in the Bauer College of Business found that 24% of customers purchase more than one cup of coffee per day from their shop. If 180 customers are randomly selected one day, what is the probability that no less than 25% of them purchase..
You have been asked to develop a study of the effects of watching Sesame Street on childrens' gender role orientations, intelligence, or sociability.
Forecast sales for the next day using a three-day weighted moving average where the weights are 3, 1, and 1 (the highest weight is for the most recent number).
In the regression analysis involving 25 observations following estimated regresion equation was developed. hat(Y) = 10 - 18x1+3x2+14x3 also follwoing standard errors. Test stastic for testing significance of model is?
q1. how would you explain the analysis of variance assuming that your audience has not had a statistics class before?
It will take 30 minutes regardless of the traffic conditions. Lynn's utility for travel time is: U(15 minutes) = 0.9, U(30 minutes) = 0.7, and U(40 minutes) = 0.2. Which route will minimize Lynn's expected travel time?
Lemon Corporation, an automobile manufacturer, is trying to determine the source of defects in some of its autos.
a technician plans to test a certain type of resin developed in the laboratory to determine the nature of the time it
A statistically significant result occurs when the value of the test statistic falls in the rejection region. A result has practical significance when it is statistically significant
Based on p=.60, probability that a randomly selected homeowners will say no to newspaper subscription.
How do you determine the common factor in an expression? Please give some concrete examples. what is a common factor ? Where do you use the common factor in an expression consisting of various terms?
Use the data set for math education and conduct an ANOVA to see if there are any statistically significant differences with respect to problem solving total for students who have different categories of the concept of learning by themes (colcateg)..
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