5. In a large class, the instructor ran a regression with the independent variable(x) as the grade on the first exam and the dependent variable(y) being the grade on the second exam. She found the equation to be: Y= 29.25 + .57X Knowing that fricnd got a 78 on the first cxam, what valuc would you prcdict she got on the sccond cxam? your a) 71.43 b) 72.57 c) 78.00 d) 73.71

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Chapter1: Starting With Matlab
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5. In a large class, the instructor ran a regression with the independent variable(x) as the grade on the first exam and the
dependent variable(y) being the grade on the second exam. She found the equation to be:
Y = 29.25 + .57X
Knowing that your fricnd got a 78 on the first cxam, what valuc would you prcdict shc got on the sccond cxam?
a) 71.43
b) 72.57
c) 78.00
d) 73.71
6. A test result is one that detects the condition when the condition is present is called.
a) True Negative
b) False positive
c) Sensitivity
d) True Positive
7. A test result is one that detects the condition when the condition is absent is called.
a) Truc Negative
b) Falsc positive
c) Sensitivity
d) True Positive
TN
Transcribed Image Text:5. In a large class, the instructor ran a regression with the independent variable(x) as the grade on the first exam and the dependent variable(y) being the grade on the second exam. She found the equation to be: Y = 29.25 + .57X Knowing that your fricnd got a 78 on the first cxam, what valuc would you prcdict shc got on the sccond cxam? a) 71.43 b) 72.57 c) 78.00 d) 73.71 6. A test result is one that detects the condition when the condition is present is called. a) True Negative b) False positive c) Sensitivity d) True Positive 7. A test result is one that detects the condition when the condition is absent is called. a) Truc Negative b) Falsc positive c) Sensitivity d) True Positive TN
E The De X
Psycho x
G what b X
OWL // X
E CashC X Thank X
Ent
e/chronos/u-e6972a2a538bd5463ef8809d646584574ea7d8ca/MyFiles/Downloads/Math%20115%20Final%20Exam%20S
ing 2021.pdf
2/5
80%
Questions 1-4 use the following scenario:
Suppose that you have decided to buy an ice cream truck to go into the ice cream business this summer instead of getting
a summer job. You collected data every day last summer while working for an ice cream company about the temperature
(in °F) and sales (in dollars) for that day as a way to rescarch for your ncw busincss. You decided to fit a regression linc
and get the following based off of your data
R = 47.1%
Sales = -762+ 18.53*Temperature
Transcribed Image Text:E The De X Psycho x G what b X OWL // X E CashC X Thank X Ent e/chronos/u-e6972a2a538bd5463ef8809d646584574ea7d8ca/MyFiles/Downloads/Math%20115%20Final%20Exam%20S ing 2021.pdf 2/5 80% Questions 1-4 use the following scenario: Suppose that you have decided to buy an ice cream truck to go into the ice cream business this summer instead of getting a summer job. You collected data every day last summer while working for an ice cream company about the temperature (in °F) and sales (in dollars) for that day as a way to rescarch for your ncw busincss. You decided to fit a regression linc and get the following based off of your data R = 47.1% Sales = -762+ 18.53*Temperature
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