Mathematics, 31.07.2021 09:20 sarahsteelman
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PROIECT 21 Detective MAME-Confidence interval for a Population Proportion
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For this project you need to obtain some plain M&Ms.
1. Data collection: Carefully inspect at least 200 M&Ms, sorting them into two piles, with non
defective M&Ms in one pile and defective M&Ms in a second pile. A defective M&Ms is one
with missing letters, chips, or cracks. If your bag has less than 200 M&Ms obtain some more.
command
What is your sample size?
What is the number of defective M&Ms?
2. With your sample calculate a 95% confidence interval for the population proportion of defective
plain M&Ms by hand (SHOW WORK). Please write a complete sentence. Round to 3 decimal
places
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P(-1)
Answers: 2
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Arectangular yard has area 96 square feet. if the width of the yard is 4 feet less than the length
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Amanufacturing firm has been averaging 16.8 orders per week for several years. however, during a recession, orders appeared to slow. suppose the firm’s production manager randomly samples 31 weeks and finds an average of 15.6 orders with a standard deviation of 2.3 orders. using a 0.025 significance level, test whether the mean number of orders has decreased. type the full 5 step procedure into the answer box, then for multiple choice practice, answer the following: 1. what is the name and symbol of the parameter that you are testing? 2. what is the symbol and value of the point estimate of that parameter? 3. what distribution are you using to test this parameter? 4. what is the critical value? 5. what is the test statistic value? 6. what is the p-value?
Answers: 2
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PROIECT 21 Detective MAME-Confidence interval for a Population Proportion
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