Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN: 9780547587776
Author: HOLT MCDOUGAL
Publisher: HOLT MCDOUGAL
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### Data Analysis in Sports Marketing During the Pandemic A sports company is struggling during the COVID-19 epidemic. This sports company uses this time in analysis to make a profit when time is right. The company was doing analysis of the last digit of their jerseys, which were most sold during the FIFA World Cup. The company hires you to test the claim that the last digit of jerseys from the population has different frequencies. A Simple Random Sample (SRS) of 300 sports fans are randomly selected. The table is formed from the results. ### Frequency Distribution of Last Digits | Last Digit | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |------------|----|----|----|----|----|----|----|----|----|----| | Frequency | 30 | 35 | 24 | 25 | 35 | 36 | 37 | 27 | 27 | 24 | ### Tasks Assigned #### 1) Observed vs. Expected Frequencies **Question:** What are the observed and expected frequencies for their last digit of 7? Choose one of the following: - a) 7.7 - b) 27.27 - c) 27.30 - d) 30.27 - e) 7.27 #### 2) Hypothesis Selection **Question:** Which hypothesis is the right one? How about the conclusion choice? Choose one of the following as the answer: ![Hypothesis Options](https://i.imgur.com/Q7FZKO4.jpg) - Null hypothesis: \( p_0 = p_1 = \ldots = p_8 = p_9 \) (Box 1/2) - Alternative hypothesis: At least one \( p \) is different from the rest. (Box 3/4) - Alternative hypothesis: \( p_0 = p_1 = \ldots = p_8 \neq p_9 \) (Box 3/4) - Alternative hypothesis: All \( p \) are different from each other. (Box 1/2) - Alternative hypothesis: At least one \( p \) is different from the rest. (Box 1/2) #### 3) Statistical Significance Decision **Question:** At 0
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Transcribed Image Text:### Data Analysis in Sports Marketing During the Pandemic A sports company is struggling during the COVID-19 epidemic. This sports company uses this time in analysis to make a profit when time is right. The company was doing analysis of the last digit of their jerseys, which were most sold during the FIFA World Cup. The company hires you to test the claim that the last digit of jerseys from the population has different frequencies. A Simple Random Sample (SRS) of 300 sports fans are randomly selected. The table is formed from the results. ### Frequency Distribution of Last Digits | Last Digit | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |------------|----|----|----|----|----|----|----|----|----|----| | Frequency | 30 | 35 | 24 | 25 | 35 | 36 | 37 | 27 | 27 | 24 | ### Tasks Assigned #### 1) Observed vs. Expected Frequencies **Question:** What are the observed and expected frequencies for their last digit of 7? Choose one of the following: - a) 7.7 - b) 27.27 - c) 27.30 - d) 30.27 - e) 7.27 #### 2) Hypothesis Selection **Question:** Which hypothesis is the right one? How about the conclusion choice? Choose one of the following as the answer: ![Hypothesis Options](https://i.imgur.com/Q7FZKO4.jpg) - Null hypothesis: \( p_0 = p_1 = \ldots = p_8 = p_9 \) (Box 1/2) - Alternative hypothesis: At least one \( p \) is different from the rest. (Box 3/4) - Alternative hypothesis: \( p_0 = p_1 = \ldots = p_8 \neq p_9 \) (Box 3/4) - Alternative hypothesis: All \( p \) are different from each other. (Box 1/2) - Alternative hypothesis: At least one \( p \) is different from the rest. (Box 1/2) #### 3) Statistical Significance Decision **Question:** At 0
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