An important factor in selling a residential property is the number of people who look through the home. A sample of 20 homes re
cently sold in the Buffalo, New York, area revealed the mean number looking through each home was 22 and the standard deviation of the sample was 7 people. Develop a 98 percent confidence interval for the population mean.
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Answer:
Assume x is directly proportional to y :
when y is 9, x is 2:
substitute to find value of k :
Therefore, equation is: