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The number of viewers of American Idol has a mean of 29 million with a standard deviation of 5 million. Assume this distribution follows a normal distribution. What is the probability that next week's show will have (a) between 30 and 34 million viewers (b) have at least 23 million viewers and (c) exceed 40 million viewers?
The analysis of variances produces df between = 3 and df within = 24. For this analysis, determine df total ?
College students are a major target for advertisements for credit cards. At a university, 65% of students surveyed said they had opened a new credit card account within the past year. If that percentage is accurate, how many students would you exp..
MATH1550H: Assignment: Question: Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form
Explain the relationship between total gross and opening gross total gross and number of theatres total gross and week in top 60.
Graph the least-squares line on your scatter diagram. Be sure to use the point (x, y) as one of the points on the line.
Produce the scatter plot for sodium and bp. Do you think there are any outliers?
Deriving the regression equation, testing the model fit and obtains confidence interval for estimated values.
Determining probability when guessing answers. Test comprise of multiple- choice questions each having 4 possible answers (a, b, c, d) one of which is right. Suppose that you guess answers to six such questions.
Compute the minimum sample size required assuming that no prior information is avaiable?
Based on surveys conducted in 1989 and 1999, a researcher compared the proportion of high school age females interested in a career in science in 1989 with the proportion in 1999. He concluded that the proportions were not significantly different ..
A sample of 120 homes sold recently in a big city gave the mean price of homes equal to $270,000 and the standard deviation equal to $70,000. (a) What is the point estimate of the mean price of all homes in the big city?
Determine the relationships among data above? Analyze with charts/graphs/tables and a discussion.
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