Examlex
Exhibit 14-6
You are given the following information about y and x.
-A company has recorded data on the daily demand for its product (y in thousands of units) and the unit price (x in hundreds of dollars). A sample of 15 days demand and associated prices resulted in the following data.
a.Using the above information, develop the least-squares estimated regression line and write the equation.
b.Compute the coefficient of determination.
c.Perform an F test and determine whether or not there is a significant relationship between demand and unit price. Let = 0.05.
d.Would the demand ever reach zero? If yes, at what price would the demand be zero?
Q1: Refer to Exhibit 20-5. The expected value
Q6: Refer to Exhibit 15-5. The estimated
Q8: The personnel department of a large
Q15: When only common cause variation is present
Q44: Refer to Exhibit 20-4. The recommended decision
Q45: Refer to Exhibit 17-1. An estimate of
Q87: In an analysis of variance where the
Q90: In a simple regression analysis (where y
Q95: Refer to Exhibit 13-6. The number of
Q106: At <span class="ql-formula" data-value="\alpha"><span class="katex"><span