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The triangle is an obtuse triangle.It has two acute angles.
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San Diego City College Statistics Matched Pairs Lab
Progress CheckUse this activity to assess whether you and your peers can: Under appropriate conditions, conduct a hypothes ...
San Diego City College Statistics Matched Pairs Lab
Progress CheckUse this activity to assess whether you and your peers can: Under appropriate conditions, conduct a hypothesis test about a mean for a matched pairs design. State a conclusion in context.ContextGosset's Seed Plot DataWilliam S. Gosset was employed by the Guinness brewing company of Dublin. Sample sizes available for experimentation in brewing were necessarily small. At that time, Gosset contacted a famous statistician Karl Pearson (1857-1936) and was told that there were no techniques for developing probability models for small data sets. Gosset studied under Pearson, and the outcome of his study was perhaps the most famous paper in statistical literature, "The Probable Error of a Mean" (1908), which introduced the T-distribution.Since Gosset was employed by Guinness, any work he produced would be owned by Guinness, so he published under a pseudonym, "Student"; hence, the T-distribution is often referred to as Student's T-distribution.To illustrate his analysis, Gosset used the results of seeding 11 different plots of land with two different types of seed: regular and kiln-dried. He wanted to determine if drying seeds before planting increased plant yield. Since different plots of soil may be naturally more fertile, this confounding variable was eliminated by using the matched pairs design and planting both types of seed in all 11 plots.The resulting data (corn yield in pounds per acre) are as follows.PlotRegular seedKiln-dried Seed11903200921935191531910201142496246352108218061961192572060212281444148291612154210131614431115111535We use these data to test the hypothesis that kiln-dried seed yields more corn than regular seed.Because of the nature of the experimental design (matched pairs), we are testing the difference in yield.PlotRegular seedKiln-dried SeedDifference119032009–10621935191520319102011–10142496246333521082180–7261961192536720602122–62814441482–38916121542701013161443–1271115111535–24Note that the differences were calculated: regular − kiln-dried.VariablesRegular seed: regular seeds that were traditionally used for plantingKiln-dried seed: seeds that were kiln-dried before plantingDataOpen the seeds datafile in the Stats at Cuyamaca College group on StatCrunch (directions - opens in a new tab).PromptState the hypotheses and define the parameter.Checking conditions: Since Gosset invented the T-distribution, we will assume that his sample meets the conditions and proceed with the T-test. Regardless, answer these questions to demonstrate your understanding of the conditions for use of the T-model.But first you will need to review the dotplots for the data (opens in a new tab).
Which graph is used to check conditions? Why?What do we look for in the graph to verify that conditions are met?What else do we need to know about the sample of seeds before using the T-test?Use StatCrunch to find the T-score and the P-value. Hint: as you work through the StatCrunch directions, keep in mind that we want to calculate the differences as regular − kiln-dried . So you will choose Regular seed for Sample 1 and Kiln-dried seed for Sample 2. (directions)Copy the information in the StatCrunch output window and paste it into the textbook with your response.State a conclusion based on the context of this scenario.
The Cookie Factory wants to sell chocolate chip and peanut butter cookies in
The Cookie Factory wants to sell chocolate chip and peanut butter cookies in combination packages of 6-12 cookies. At le ...
The Cookie Factory wants to sell chocolate chip and peanut butter cookies in
The Cookie Factory wants to sell chocolate chip and peanut butter cookies in combination packages of 6-12 cookies. At least three of each type of cookie should be in each package. The cost of making a chocolate chip cookie is 19 cents, and the selling price is 44 cents each. The cost of making a peanut butter cookie is 13 cents, and the selling price is 39 cents. How many of each type of cookie should be in each package to maximize the profit?
9 pages
MAT540 Homework Week 4 Page 1 of 5 MAT540 Week 4 Homework Chapter 15 1. The manager of the Carpet Ci
MAT540 Homework
Week 4
Page 1 of 5
MAT540
Week 4 Homework
Chapter 15
1. The manager of the Carpet City outlet needs ...
MAT540 Homework Week 4 Page 1 of 5 MAT540 Week 4 Homework Chapter 15 1. The manager of the Carpet Ci
MAT540 Homework
Week 4
Page 1 of 5
MAT540
Week 4 Homework
Chapter 15
1. The manager of the Carpet City outlet needs to make an accurate forecast of the demand for Soft Shag carpet (its biggest seller). If the manager does not order enough carpet from the carpet mill, customer will buy their carpet from one of Carpet City’s many competitors. The manager has collected the following demand data for the past 8 months:
Month
Demand for Soft Shag
Carpet (1,000 yd.)
1
10
2
9
3
8
4
9
5
10
6
12
7
14
8
11
a. Compute a 3-month moving average forecast for months 4 through 9.
b. Compute a weighted 3-month moving average forecast for months 4 through 9. Assign weights of 0.55, 0.35, and 0.10 to the months in sequence, starting with the most recent month.
c. Compare the two forecasts by using MAD. Which forecast appears to be more accurate?
2. The manager of the Petroco Service Station wants to forecast the demand for unleaded gasoline next month so that the proper number of gallons can be ordered from
5 pages
Tutor 1 1
Submission instructions: compute and handwrite solutions submit all work/setup which 1a-c. Suppose we have a new type of M ...
Tutor 1 1
Submission instructions: compute and handwrite solutions submit all work/setup which 1a-c. Suppose we have a new type of MBS to accommodate the ...
4 pages
Football Games Case Study
The table that is created below demonstrates a summary of all the food service break-even report. The table has included t ...
Football Games Case Study
The table that is created below demonstrates a summary of all the food service break-even report. The table has included total fixed costs that was ...
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Most Popular Content
San Diego City College Statistics Matched Pairs Lab
Progress CheckUse this activity to assess whether you and your peers can: Under appropriate conditions, conduct a hypothes ...
San Diego City College Statistics Matched Pairs Lab
Progress CheckUse this activity to assess whether you and your peers can: Under appropriate conditions, conduct a hypothesis test about a mean for a matched pairs design. State a conclusion in context.ContextGosset's Seed Plot DataWilliam S. Gosset was employed by the Guinness brewing company of Dublin. Sample sizes available for experimentation in brewing were necessarily small. At that time, Gosset contacted a famous statistician Karl Pearson (1857-1936) and was told that there were no techniques for developing probability models for small data sets. Gosset studied under Pearson, and the outcome of his study was perhaps the most famous paper in statistical literature, "The Probable Error of a Mean" (1908), which introduced the T-distribution.Since Gosset was employed by Guinness, any work he produced would be owned by Guinness, so he published under a pseudonym, "Student"; hence, the T-distribution is often referred to as Student's T-distribution.To illustrate his analysis, Gosset used the results of seeding 11 different plots of land with two different types of seed: regular and kiln-dried. He wanted to determine if drying seeds before planting increased plant yield. Since different plots of soil may be naturally more fertile, this confounding variable was eliminated by using the matched pairs design and planting both types of seed in all 11 plots.The resulting data (corn yield in pounds per acre) are as follows.PlotRegular seedKiln-dried Seed11903200921935191531910201142496246352108218061961192572060212281444148291612154210131614431115111535We use these data to test the hypothesis that kiln-dried seed yields more corn than regular seed.Because of the nature of the experimental design (matched pairs), we are testing the difference in yield.PlotRegular seedKiln-dried SeedDifference119032009–10621935191520319102011–10142496246333521082180–7261961192536720602122–62814441482–38916121542701013161443–1271115111535–24Note that the differences were calculated: regular − kiln-dried.VariablesRegular seed: regular seeds that were traditionally used for plantingKiln-dried seed: seeds that were kiln-dried before plantingDataOpen the seeds datafile in the Stats at Cuyamaca College group on StatCrunch (directions - opens in a new tab).PromptState the hypotheses and define the parameter.Checking conditions: Since Gosset invented the T-distribution, we will assume that his sample meets the conditions and proceed with the T-test. Regardless, answer these questions to demonstrate your understanding of the conditions for use of the T-model.But first you will need to review the dotplots for the data (opens in a new tab).
Which graph is used to check conditions? Why?What do we look for in the graph to verify that conditions are met?What else do we need to know about the sample of seeds before using the T-test?Use StatCrunch to find the T-score and the P-value. Hint: as you work through the StatCrunch directions, keep in mind that we want to calculate the differences as regular − kiln-dried . So you will choose Regular seed for Sample 1 and Kiln-dried seed for Sample 2. (directions)Copy the information in the StatCrunch output window and paste it into the textbook with your response.State a conclusion based on the context of this scenario.
The Cookie Factory wants to sell chocolate chip and peanut butter cookies in
The Cookie Factory wants to sell chocolate chip and peanut butter cookies in combination packages of 6-12 cookies. At le ...
The Cookie Factory wants to sell chocolate chip and peanut butter cookies in
The Cookie Factory wants to sell chocolate chip and peanut butter cookies in combination packages of 6-12 cookies. At least three of each type of cookie should be in each package. The cost of making a chocolate chip cookie is 19 cents, and the selling price is 44 cents each. The cost of making a peanut butter cookie is 13 cents, and the selling price is 39 cents. How many of each type of cookie should be in each package to maximize the profit?
9 pages
MAT540 Homework Week 4 Page 1 of 5 MAT540 Week 4 Homework Chapter 15 1. The manager of the Carpet Ci
MAT540 Homework
Week 4
Page 1 of 5
MAT540
Week 4 Homework
Chapter 15
1. The manager of the Carpet City outlet needs ...
MAT540 Homework Week 4 Page 1 of 5 MAT540 Week 4 Homework Chapter 15 1. The manager of the Carpet Ci
MAT540 Homework
Week 4
Page 1 of 5
MAT540
Week 4 Homework
Chapter 15
1. The manager of the Carpet City outlet needs to make an accurate forecast of the demand for Soft Shag carpet (its biggest seller). If the manager does not order enough carpet from the carpet mill, customer will buy their carpet from one of Carpet City’s many competitors. The manager has collected the following demand data for the past 8 months:
Month
Demand for Soft Shag
Carpet (1,000 yd.)
1
10
2
9
3
8
4
9
5
10
6
12
7
14
8
11
a. Compute a 3-month moving average forecast for months 4 through 9.
b. Compute a weighted 3-month moving average forecast for months 4 through 9. Assign weights of 0.55, 0.35, and 0.10 to the months in sequence, starting with the most recent month.
c. Compare the two forecasts by using MAD. Which forecast appears to be more accurate?
2. The manager of the Petroco Service Station wants to forecast the demand for unleaded gasoline next month so that the proper number of gallons can be ordered from
5 pages
Tutor 1 1
Submission instructions: compute and handwrite solutions submit all work/setup which 1a-c. Suppose we have a new type of M ...
Tutor 1 1
Submission instructions: compute and handwrite solutions submit all work/setup which 1a-c. Suppose we have a new type of MBS to accommodate the ...
4 pages
Football Games Case Study
The table that is created below demonstrates a summary of all the food service break-even report. The table has included t ...
Football Games Case Study
The table that is created below demonstrates a summary of all the food service break-even report. The table has included total fixed costs that was ...
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