# SCF STA 2023 - STA 2023 ELEMENTARY STATISTICS (3 pages)

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## STA 2023 ELEMENTARY STATISTICS

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## STA 2023 ELEMENTARY STATISTICS

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Lecture Notes

Pages:
3
School:
State College of Florida, Manatee-Sarasota
Course:
Sta 2023 - Elementary Statistics
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STA 2023 ELEMENTARY STATISTICS Project 6 Part 1 Never the Same Amount M M Mars the makers of Skittles candies states that the flavor blend is 20 for each flavor Skittles is a combination of lemon lime orange strawberry and grape flavored candies The following table lists the results of five randomly selected bags of Skittles and their flavor blends Use the data to answer the questions below Bag Flavor Green Orange Red Purple Yellow 1 7 20 10 7 14 2 20 5 5 13 17 3 4 16 13 21 4 4 12 9 16 3 17 5 43 50 44 44 52 1 What is the variable being tested 2 Is the variable quantitative or qualitative 3 What type of test can be used to compare the observed values to the pre determined expected values 4 Run five separate Chi square tests one on each bag and list the test statistic degrees of freedom pvalue and conclusion for each test Compare the results 5 What are the degrees of freedom in each separate Chi Square test 6 How does small sample size affect the results of a Chi Square Goodnes of Fit test 7 How many total skittles were in bag five 8 What would the degrees of freedom be for the bag five test if it contained 1000 Skittles 1 STA 2023 Elementary Statistics Project 6 Part 2 Satellite Dishes in Restricted Areas The Senate is expected to vote on a bill to allow the installation of satellite dishes of any size in deedrestricted areas The house had passed a similar bill An opinion poll was taken to see if how people felt about satellite dish restrictions was related to their age A chi square test was run and the results follow Degrees of freedom df 6 Test statistic Chi Square 11 25 Critical value Chi Square 12 6 P value 06 Significance level 05 18 29 30 49 50 64 65 up For 96 79 5 96 79 5 90 79 5 36 79 5 Against 201 204 75 189 204 75 195 204 75 234 204 75 Don t Know 3 15 75 15 15 75 15 15 75 30 15 75 1 Which number from the output is compared to the significance level to check if the null hypothesis should be rejected 2 Which number from the output gives the probability of a

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