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Q1) Sample poll of 100 voters selected at random from all voters in given district pointed out that 53% of them were in favour of a particular candidate.
a) Determine a 95% confidence interval for proportion of all voters in favour of candidate.
b) Based on this would you be 95% confident that this candidate will win election by winning at least 50% of all the votes?
c) How large a sample size would be required to be with 1% of true proportion of voters who would vote for this applicant with 99% confidence?
What can be completed to remedy multicollinearity.
Each egg was also measured for volume using a water displacement method. We wanted to know if the two methods agreed or not
Utilizing form of Regression method which would give you highest performing model to forecast Sales. Utilizing your model forecast the sales
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Find a 98% confidence interval for the mean number of days required for successful completion of physical therapy for patients in the average group. Discuss the results.
In past, mean processing time was 45 days. At 0.05 level of significance, is there evidence that mean processing time has changed from 45 days?
At the 5 percent level of significance, can we conclude that the mean weight is greater than 16 ounces? Determine the p- value.
Why might the assumption of independence be violated? (b) Why might a driver be tempted not to use a seat belt "just on this trip"?
In a bumper test, three types of autos were deliberately crashed into a barrier at 5 mph, and the resulting damage (in dollars) was estimated. Five test vehicles of each type were crashed, with the results shown below. Research question: Are the ..
For this same sample of n = 45, find out the width of confidence interval around population mean? Illustrate all work.
Obtain the simple linear regression equation, then analyze the residuals by (a) constructing a histogram
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