Determine the least-squares regression line

Reference no: EM13977518

Prior to being hired, the five salespersons for a computer store were given a standard sales aptitude test. For each individual, the score achieved on the aptitude test and the number of computer systems sold during the first 3 months of their employment are shown here.

John Cora Sam Cindy Henry

x = Score on aptitude test 80 70 45 90 20

y = Units sold in 3 months 25 15 10 40 5

Determine the least-squares regression line and interpret its slope. Estimate, for a new employee who scores 60 on the sales aptitude test, the number of units the new employee will sell in her first 3 months with the company.

Reference no: EM13977518

Questions Cloud

Construct a cost of production report : Comment on the change in costs per equivalent unit for January through March for direct materials and conversion costs.

Determine the least-squares regression line : Determine the least-squares regression line and interpret its slope. Estimate, for a new employee who scores 60 on the sales aptitude test, the number of units the new employee will sell in her first 3 months with the company.

Explain whether you think an autobiographical : Explain whether you think the representations of slavery in the visual arts (such as William Blake's illustrations, William Hackwood's cameo, or John Singleton Copley's painting) were more compelling and convincing of the injustices of slavery than l..

Find the wavelength of the photon : Find the wavelength λn of the photon that must be absorbed by an electron to move it from the nth state of a box to the (n+1)th state. Assume that the box has length L and that the electron has mass m.

Write a brief business message delivering bad news : You will write a brief business message delivering bad news. A bad news message can be written in either a direct approach or an indirect approach. For this assignment, please use the indirect approach, and include an appropriate buffer. At the ..

True coefficient of correlation : Testing the null hypothesis that the slope of the true regression line equals zero is equivalent to testing whether the true coefficient of correlation could be zero. Why?

Compare common methods of consulting : "Positive Deviance Method and Research Approaches" Please discuss the following: Compare and contrast the more common methods of consulting with the positive deviance method

Prepare an income statement for january : Indicate the effect of each transaction and the balances after each transaction, using the following tabular headings:

User Account

All Pages