Mathematics, 05.05.2020 05:40, ninaaforever
The table below gives the list price and the number of bids received for five randomly selected items sold through online auctions. Using this data, consider the equation of the regression line, yˆ = b0 + b1x, for predicting the number of bids an item will receive based on the list price. Keep in mind, the correlation coefficient may or may not be statistically significant for the data given. Remember, in practice, it would not be appropriate to use the regression line to make a prediction if the correlation coefficient is not statistically significant.
Price in Dollars Number of Bids
24 2
27 5
32 6
34 7
39 8
Step 1 of 6: Find the estimated slope. Round your answer to three decimal places.
Step 2 of 6: Find the estimated y-intercept. Round your answer to three decimal places.
Step 3 of 6: Find the estimated value of y when x = 34. Round your answer to three decimal places.
Step 4 of 6: Determine the value of the dependent variable yˆ at x = 0.
Step 5 of 6: Substitute the values you found in steps 1 and 2 into the equation for the regression line to find the estimated linear model. According to this model, if the value of the independent variable is increased by one unit, then find the change in the dependent variable yˆ.
Step 6 of 6: Find the value of the coefficient of determination. Round your answer to three decimal places.
Answers: 3
Mathematics, 21.06.2019 12:30, kelseeygee
Acable car begins its trip by moving up a hill. as it moves up, it gains elevation at a constant rate of 50 feet/minute until it reaches the peak at 2,000 feet. then, as the car moves down to the hill’s base, its elevation drops at the same rate.
Answers: 1
Mathematics, 21.06.2019 21:00, iisanchez27
Consider the polynomials given below. p(x) = x4 + 3x3 + 2x2 – x + 2 q(x) = (x3 + 2x2 + 3)(x2 – 2) determine the operation that results in the simplified expression below. 35 + x4 – 573 - 3x2 + x - 8 a. p+q b. pq c. q-p d. p-q
Answers: 2
The table below gives the list price and the number of bids received for five randomly selected item...
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