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Listed below are the overhead widths (in cm) of seals measured from photographs and the weights (in kg) of the seals
overhead width: 7.0 7.5 9.9 9.3 8.6 8.2
weight: 109 195 253 197 192 184
a. Construct a scatter plot, find the value of the linear correlation coefficient r, and find the critical values of r from Table A-6 using a = 0.05.
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Is the gender distribution for theater goers significantly different from the distribution for the general college? Test at the .05 level of significance.
Find a 95% confidence interval for the mean weight of the population of all such runners, assuming that the population standard deviation is o=4.5 kg. Based on the confidence interval, does a test of Ho: u=61.3kg, Ha: u =/ 61.3kg
At the 0.05 level of significance, is there sufficient reason to believe that the integers are not being generated uniformly?
How large a sample must one take to be 90% confident that the estimate is within 0.05 of the true proportion of women over 55 who are widows?
please answer both questions using a minimum of 100 words. use examples or references to support the solution. all
an accounting firm has noticed that of the companies it audits 85 show no inventory shortages 10 show small inventory
the tensile strength of paper is modeled by a normal distribution with a mean of 35 pounds per square inch and a
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Develop a regression model for predicting the difference in the asking price and selling price.
a study was conducted to investigate the relationship between maternal smoking during pregnancy and the presence of
Compute the value of the test statistic. Determine the p-value; and at 93.7% confidence, test the above hypotheses.
She asked her assistant for a 95% confidence interval, approximately how large a sample did her assistant use to determine the interval estimate?
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