Descriptive Statistics Minimum Maximum Sum Range Мean Std. Deviation Variance Sales 15 20 197 24.80 3.53 12.46 a) Calculate the missing values in the table (Sum and Range) b) | The average sales was $26.6 last year and the manager of the firm claim that there is a decrease in the sales this year. Does the data provide sufficient evidence to support the claim of the manager at 1% significance level? Show your calculations in detail and interpret the result.
Descriptive Statistics Minimum Maximum Sum Range Мean Std. Deviation Variance Sales 15 20 197 24.80 3.53 12.46 a) Calculate the missing values in the table (Sum and Range) b) | The average sales was $26.6 last year and the manager of the firm claim that there is a decrease in the sales this year. Does the data provide sufficient evidence to support the claim of the manager at 1% significance level? Show your calculations in detail and interpret the result.
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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Transcribed Image Text:(No computer output is accepted) Maxwell's hot chocolate is concerned about the effect
of the year-long coffee advertising campaign on the chocolate sales. The weekly hot
chocolate sales from 15 locations (in this year) is collected and summarized in the following
table.
Descriptive Statistics
Maximum
N.
Sum
Range
Minimum
Mean
Std. Deviation
Variance
Sales
15
20
197
24.80
3.53
12.46
a)
Calculate the missing values in the table (Sum and Range)
b)
The average sales was $26.6 last year and the manager of the firm claim that
there is a decrease in the sales this year. Does the data provide sufficient evidence to
support the claim of the manager at 1% significance level? Show your calculations in
detail and interpret the result.
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