1. Which of the following is the proper interpretation of the slope? a) For cvcry onc dollar incrcasc in Salcs, Tcmpcraturc will incrcasc on avcrage by 18.53 degrces. b) Whcn the Salcs arc 0 dollars, Tcmpcraturc will bc 18.53 degrccs, on avcrage. c) When the Temperature is 0 degrees, Sales will be 18.53 dollars, on average. d) For every one degree increase in Temperature, Sales will increase on average by 18.53 dollars. 2. What is the correlation between these two variables? a) R=-0.6862944 b) R=0.6862944 c) R=0.221841 d) R=-0.221841 3. The range of the variable Temperature that you observed was 72 F - 100 F. You hear a weather report saying a massive hcat wave is coming your way and the high in your town will bc 120°F tomorTow. You decide that you would like a prediction of your salcs tomorrow since you presume you will make so much moncy. You usc your regression cquation to predict your salcs for tomorrow and get a predicted valuc of $1461. What crror have you made? a) restricted range problem b) extrapolation c) misusc of cause and cllect d) misinterprctation of the slope and intercept

1. Which of the following is the proper interpretation of the slope? a) For cvcry onc dollar incrcasc in Salcs, Tcmpcraturc will incrcasc on avcrage by 18.53 degrces. b) Whcn the Salcs arc 0 dollars, Tcmpcraturc will bc 18.53 degrccs, on avcrage. c) When the Temperature is 0 degrees, Sales will be 18.53 dollars, on average. d) For every one degree increase in Temperature, Sales will increase on average by 18.53 dollars. 2. What is the correlation between these two variables? a) R=-0.6862944 b) R=0.6862944 c) R=0.221841 d) R=-0.221841 3. The range of the variable Temperature that you observed was 72 F - 100 F. You hear a weather report saying a massive hcat wave is coming your way and the high in your town will bc 120°F tomorTow. You decide that you would like a prediction of your salcs tomorrow since you presume you will make so much moncy. You usc your regression cquation to predict your salcs for tomorrow and get a predicted valuc of $1461. What crror have you made? a) restricted range problem b) extrapolation c) misusc of cause and cllect d) misinterprctation of the slope and intercept

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Description: 1. Which of the following is the proper interpretation of the slope?a) For evcry onc dollar incrcasc in Salcs, Tempcraturc will incrcasc on avcragc by 18.53 dcgrccs.b) Whcn the Salcs arc 0 dollars, Tcmpcraturc will bc 18.53 dcgrecs, on averagc.c) Wh

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.

Topic Video

Question

1. Which of the following is the proper interpretation of the slope?
a) For evcry onc dollar incrcasc in Salcs, Tempcraturc will incrcasc on avcragc by 18.53 dcgrccs.
b) Whcn the Salcs arc 0 dollars, Tcmpcraturc will bc 18.53 dcgrecs, on averagc.
c) When the Temperature is 0 degrees, Sales will be 18.53 dollars, on average.
d) For every one degree increase in Temperature, Sales will increase on average by 18.53 dollars.
2. What is the correlation between these two variables?
a) R--0.6862944
b) R 0.6862944
c) R-0.221841
d) R=-0.221841
3. The range of the variable Temperature that you observed was 72 F - 100°F. You hear a weather report saying a massive
hcat wave is coming your way and the high
prcdiction of your salcs tomorrow since you presume you will makc so much moncy. You usc your regression cquation to
predict your salcs for tomorrow and get a predicted valuc of $1461. What crror have you made?
your town will be 120°F tomorrow. You decide that you would likc a
a) restricted range problem
b) extrapolation
misuse of cause and cffect
c)
d) misinterprctation of the slope and intercept

E The DeX
E Psyche X
G what b x
P OWL// X
CashC X
Thank X
-e6972a2a538bd5463ef8809d646584574ea7d8ca/MyFiles/Downloads/Math%20115%20Final%20Exan
If
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 rcscarch for your new business. You decided to fit a regression linc
and gct the following bascd off of your data
Sales = -762 + 18.53*Tcmpcrature
R =47.1%

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