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For given problem, give a 95% confidence interval for the difference in proportion of theaters nationwide where one movie will be preferred over the other. Is the point 0 contained in the interval? Discuss.
Problem Two movies were screen-tested at two different samples of theaters. Mystic River was viewed at 80 theaters and was considered a success in terms of box office sales in 60 of these theaters. Swimming Pool was viewed at a random sample of 100 theaters and was considered a success in 65. Based on these data, do you believe that one of these movies was a greater success than the other? Explain.
Among 9 females, the mean diameter of the heart was found to be 11 cm with a standard deviation of 1.01. Construct a 95% confidence interval for the mean difference in heart size.
Remember The Titants Deliverable Length: 600-800 words Having watched Remember the Titans (at least a few times now!) Complete the following:
Tell whether each of the given relationships reflects a positive or a negative correlation the amount of stress in people's lives and the number of colds they get in the winter.
One of the 4 bus drivers is also randomly selected. Let Y denote the number of students on his bus. Compute the expectations of X and Y?
Prove that the set of open disks in the xy plane with center (x,x) and radius x > 0, x rational, is a countable covering of the set {(x,y): x > 0, y > 0}
assume that the number of students who successfully complete this course with a grade of lsquoc or better has a
a variety of studies suggest that 10 of all people are left-handed. does the student survey data support this
What percentage of college students attend church regularly?- Does the artificial sweetener aspartame cause dizziness and confusion in some people?
1. Let X., X2 , • • • , X11 be a random sample from a Poisson distribution with mean 0. Find the unbiased minimum variance estimator of 02.
Next morning, he came to work at 8:00 and began to make calls. By 11:00 a.m., his survey was done. Don't discuss what is not said. Discuss what is wrong with what is said.
compute the slope of the regression line for the data belowx 3 0 3 5 3y 7 4 -2 2
A professor is targeting a score of 80 on an exam. His forty-nine students averaged 78 on an exam with s = 7. Are the scores significantly less than 80 at a significance level of 0.05? Show your work and state the conclusion.
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