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Western University *

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2961

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Statistics

Date

Nov 24, 2024

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docx

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Uploaded by JusticeKouprey20648

STATISTICS CASE STUDY Case Study 1: SAT Scores A school district is interested in understanding the SAT scores of its students. They collect data on the SAT scores of 100 randomly selected students. The following table summarizes the data: Statistic Value Mean 1050 Median 1040 Mode 1020 Range 300 Standard deviation 80 Questions: 1. What is the average SAT score for students in this school district? 2. What is the most common SAT score? 3. What is the spread of SAT scores in this school district? 4. What percentage of students scored within 1 standard deviation of the mean? Case Study 2: Customer Satisfaction A restaurant is interested in understanding the satisfaction of its customers. They collect data on the satisfaction ratings of 200 randomly selected customers. The following table summarizes the data:

Rating Frequency 1 (Very dissatisfied) 10 2 (Dissatisfied) 20 3 (Neutral) 40 4 (Satisfied) 80 5 (Very satisfied) 50 Questions: 1. What is the most common satisfaction rating? 2. What percentage of customers are satisfied or very satisfied with the restaurant? 3. What is the average satisfaction rating? 4. What is the median satisfaction rating?

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