The table below shows the amount a donut shop spent on advertising for 12 different the corresponding sales totals for those months. There are 12 observations. Copy the Excel and be sure to use all observations in your analysis. advertising Sales (5) ($) 15000 15600 16700 17000 16600 1400 2000 2000 3500 2000

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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The table below shows the amount a donut shop spent on advertising for 12 different months a
the corresponding sales totals for those months. There are 12 observations. Copy the data intor
Excel and be sure to use all observations in your analysis.
advertising
Sales (5)
($)
15000
1400
15600
2000
16700
2000
17000
3500
16600
2000
15000
1500
14050
500
14800
0
15200
1600
16100
1700
17300
2200
17100
2600
a1) R square is [Select]
a2) The error sum or squares (aka sum of squared errors) is [Select]
b) The predicted sales when advertising is $2,000 is Select]
c) If the shop manager chooses to spend $1,000 on advertising then on average sales will be
[Select]
:
d) The estimated slope of the regression line is [Select]
e) Consider the null hypothesis that the slope is 0. Test this hypothesis. The test statistic is
[Select]
#
f) For this test, that the slope is 0, at the .05 level of significance you
[Select]
•
g) Consider the null hypothesis that the slope is 1. Test this hypothesis. The test statistic is
[Select]
b) For this test, that the slope is 1, at the 05 level of significance you
[Select]
Transcribed Image Text:The table below shows the amount a donut shop spent on advertising for 12 different months a the corresponding sales totals for those months. There are 12 observations. Copy the data intor Excel and be sure to use all observations in your analysis. advertising Sales (5) ($) 15000 1400 15600 2000 16700 2000 17000 3500 16600 2000 15000 1500 14050 500 14800 0 15200 1600 16100 1700 17300 2200 17100 2600 a1) R square is [Select] a2) The error sum or squares (aka sum of squared errors) is [Select] b) The predicted sales when advertising is $2,000 is Select] c) If the shop manager chooses to spend $1,000 on advertising then on average sales will be [Select] : d) The estimated slope of the regression line is [Select] e) Consider the null hypothesis that the slope is 0. Test this hypothesis. The test statistic is [Select] # f) For this test, that the slope is 0, at the .05 level of significance you [Select] • g) Consider the null hypothesis that the slope is 1. Test this hypothesis. The test statistic is [Select] b) For this test, that the slope is 1, at the 05 level of significance you [Select]
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