View 125% ▼ Zoom + !!! + A ☑ Add Category Pivot Table Insert Table Chart Text Shape Media Comment Collaborate DAILY RETURN WHEAT PRICES ACTIVE VS FAILED RETAIL COMPANY CREDIT_SCORE Price Month 9.096 July 8.334 July 9.277 July 10.328 July 8.219 July 8.219 July 10.395 July 9.421 July 7.937 July 9.151 July 7.944 July 7.941 July 8.790 July 6.204 July 6.430 July 5.825 January 5.285 January 6.877 January 5.410 January 4.805 January 8.259 January 6.229 January 6.581 January 4.790 January 5.847 January 6.633 January 5.119 January 6.951 January 5.779 January 6.150 January Sheet Name WHEAT PRICES Background Format Organize Sheet Duplicate Sheet Delete Sheet

Np Ms Office 365/Excel 2016 I Ntermed
1st Edition
ISBN:9781337508841
Author:Carey
Publisher:Carey
Chapter6: Managing Multiple Worksheets And Workbooks
Section: Chapter Questions
Problem 4.8CP
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Question

Wheat Prices Analysis:

The U.S. Department of Agriculture (USDA) uses sample surveys to produce important economic estimates. In a pilot study, durum wheat prices were estimated in July and January using independent samples of wheat producers for the two months. 

The data is provided in Excel under the WHEAT PRICES sheet. 

Although there is variation among prices within each month, the top four prices are all from July, and the four lowest prices are from January. You will run a significance test to check whether the difference between the two months' prices is statistically significant or simply due to chance. 

You’ll use α = 0.05 for significance test. Assume that the two Normal population distributions have the same standard deviation.

a) Write out the null and alternative hypotheses associated with the research question. 

View
125% ▼
Zoom
+
!!!
+
A
☑
Add Category Pivot Table
Insert
Table Chart Text
Shape
Media
Comment
Collaborate
DAILY RETURN
WHEAT PRICES
ACTIVE VS FAILED RETAIL COMPANY
CREDIT_SCORE
Price
Month
9.096
July
8.334
July
9.277
July
10.328
July
8.219
July
8.219
July
10.395
July
9.421
July
7.937
July
9.151
July
7.944
July
7.941
July
8.790
July
6.204
July
6.430
July
5.825
January
5.285
January
6.877
January
5.410
January
4.805
January
8.259
January
6.229
January
6.581
January
4.790
January
5.847
January
6.633
January
5.119
January
6.951
January
5.779
January
6.150
January
Sheet Name
WHEAT PRICES
Background
Format Organize
Sheet
Duplicate Sheet
Delete Sheet
Transcribed Image Text:View 125% ▼ Zoom + !!! + A ☑ Add Category Pivot Table Insert Table Chart Text Shape Media Comment Collaborate DAILY RETURN WHEAT PRICES ACTIVE VS FAILED RETAIL COMPANY CREDIT_SCORE Price Month 9.096 July 8.334 July 9.277 July 10.328 July 8.219 July 8.219 July 10.395 July 9.421 July 7.937 July 9.151 July 7.944 July 7.941 July 8.790 July 6.204 July 6.430 July 5.825 January 5.285 January 6.877 January 5.410 January 4.805 January 8.259 January 6.229 January 6.581 January 4.790 January 5.847 January 6.633 January 5.119 January 6.951 January 5.779 January 6.150 January Sheet Name WHEAT PRICES Background Format Organize Sheet Duplicate Sheet Delete Sheet
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