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C. At the 0.05 significance level, can we conclude there is a significant positive correlation? (Round your answers to 3 deci places.) Ho: ps0 H: p>0 Reject Ho ift>

C. At the 0.05 significance level, can we conclude there is a significant positive correlation? (Round your answers to 3 deci places.) Ho: ps0 H: p>0 Reject Ho ift>

MATLAB: An Introduction with Applications
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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The Cotton Mill is an upscale chain of women's clothing stores, located primarily in the southwest United States. Due to recent success, Cotton Mill's top management is planning to expand by locating new stores in other regions of the country. The director of planning has been asked to study the relationship between yearly sales and the store size. As part of the study, the director selects a sample of 25 stores and determines the size of the store in square feet and the sales for last year. The sample data follow. The use of statistical software is suggested. Store Size Store Size (thousands of square feet) 3.7 Sales (thousands of square feet) 0.4 Sales (millions $) 9.18 (millions $ ) 0.55 2.0 4.58 4.2 7.56 5.0 0.7 8.22 3.1 2.23 1.45 2.6 4.49 2.6 6.51 5.2 9.90 8.93 2.9 2.82 3.3 3.2 5.2 10.45 7.60 5.9 9.94 4.43 4.9 3.71 3.0 5.5 5.47 2.4 4.75 7.30 2.9 8.22 2.4 2.2 7.17 4.35 0.5 3.33 2.3 5.0 6.76 E Click here for the Excel Data File a-1. Draw a scatter diagram. 1. On the graph below, use the point tool to plot the point corresponding to the first Store Size and her Sales (Size 1). 2. Repeat the process for the remainder of the sample (Size 2, Size 3, ... ). 3 To enter evact coordinates double-click on the nnint and enter the exact coordinates of vand v Prev 1 of 10 Next > Ch13 40 18e.xlsx
Transcribed Image Text:The Cotton Mill is an upscale chain of women's clothing stores, located primarily in the southwest United States. Due to recent success, Cotton Mill's top management is planning to expand by locating new stores in other regions of the country. The director of planning has been asked to study the relationship between yearly sales and the store size. As part of the study, the director selects a sample of 25 stores and determines the size of the store in square feet and the sales for last year. The sample data follow. The use of statistical software is suggested. Store Size Store Size (thousands of square feet) 3.7 Sales (thousands of square feet) 0.4 Sales (millions $) 9.18 (millions $ ) 0.55 2.0 4.58 4.2 7.56 5.0 0.7 8.22 3.1 2.23 1.45 2.6 4.49 2.6 6.51 5.2 9.90 8.93 2.9 2.82 3.3 3.2 5.2 10.45 7.60 5.9 9.94 4.43 4.9 3.71 3.0 5.5 5.47 2.4 4.75 7.30 2.9 8.22 2.4 2.2 7.17 4.35 0.5 3.33 2.3 5.0 6.76 E Click here for the Excel Data File a-1. Draw a scatter diagram. 1. On the graph below, use the point tool to plot the point corresponding to the first Store Size and her Sales (Size 1). 2. Repeat the process for the remainder of the sample (Size 2, Size 3, ... ). 3 To enter evact coordinates double-click on the nnint and enter the exact coordinates of vand v Prev 1 of 10 Next > Ch13 40 18e.xlsx
c. At the 0.05 significance level, can we conclude there is a significant positive correlation? (Round your answers to 3 decimal places.) Ho: ps0 H: p>0 ces Reject Ho if t> Ho is rejected There is a significant positive correlation between store size and sales. Prev 1 of 10 Next > Ch13_40 18e.xlsx
Transcribed Image Text:c. At the 0.05 significance level, can we conclude there is a significant positive correlation? (Round your answers to 3 decimal places.) Ho: ps0 H: p>0 ces Reject Ho if t> Ho is rejected There is a significant positive correlation between store size and sales. Prev 1 of 10 Next > Ch13_40 18e.xlsx
Expert Solution
Given

Correlation coefficient is

r = 0.6581


n = 25

t-critical value = 1.7139

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