Statistics for Business and Economics
Statistics for Business and Economics
8th Edition
ISBN: 9780132745659
Author: Paul Newbold, William Carlson, Betty Thorne
Publisher: PEARSON
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Chapter 1.2, Problem 3E
To determine

Measure of the variables used in the survey.

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Alejandro is selling HDMI cables on eBay, and is trying to determine the best price to sell at.  For the last 10 weeks, he has adjusted his price slightly each week and tracked the number of cables he sold.  He plotted the results, and drew a line he feels fits the data well. Price ($) 3, 3.25, 3.5, 3.75, 4, 4.25, 4.5, 4.75, 5 Quantity Sold - 50, 100, 150, 200, 250   a) The line of best fit passes through the points (3.50, 230) and (4.75, 210).  Find an equation for the line.   Use variables: p for price in dollars, and Q for quantity of cables sold.     b) Using this model, predict the number of cables Alejandro would sell at a price of $3.65, to the nearest whole cable.   cables
The last digit of the heights of 67 statistics students were obtained as part of an experiment conducted for a class. Use the following frequency distribution to construct a histogram. What can be concluded from the distribution of the digits? Specifically, do the heights appear to be reported or actually measured? Digit Frequency 0 15 5 5 1 T Choose the correct histogram below. O A. O B. O C. D. 18- 56789 0123456789 ܩܫܠ 6789 123456789 Are the data reported or measured? O A. The data appears to be measured. The heights occur with roughly the same frequency. O B. The data appears to be measured. Certain heights occur a ..
I need help with questions 6 through 10. I do not understand how to read the graph based on the questions asked.
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