A certain brand of jelly beans is made by Jelly Belly Inc. The company claims that each package contains about the same number of beans. The packages are filled with an average of 375 jelly beans with a standard deviation of 8. A researcher believes that the number of jelly beans going into each package is less than 375. She purchases 16 packages, counted the number of jelly beans in these packages and found an average of 368 jelly beans with a standard deviation of 10. A certain brand of jelly beans is made by Jelly Belly Inc. The company claims that each package contains about the same number of beans. The packages are filled with an average of 375 jelly beans with a standard deviation of 8. A researcher believes that the number of jelly beans going into each package is less than 375. She purchases 16 packages, counted the number of jelly beans in these packages and found an average of 368 jelly beans with a standard deviation of 10. Match the following with the correct number on the right. The appropriate hypotheses are Ho: Ha: Is this a one-tail or two tail test? A p-value of .023 is computed. Assume alpha is 0.01. Do we reject or fail to reject the null hypothesis? Construct a 95% confidence interval. (round to 2 decimal places)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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Transcribed Image Text:A certain brand of jelly beans is made by Jelly Belly Inc. The company claims that each package contains about the same number of beans. The packages are filled with an average of 375 jelly beans with a standard deviation of 8. A researcher believes that the number of jelly beans going into each package is less than 375. She purchases 16 packages, counted the number of jelly beans in these packages and found an average of 368 jelly beans with a standard deviation of 10. A certain brand of jelly beans is made by Jelly Belly Inc. The company claims that each package contains about the same number of beans. The packages are filled with an average of 375 jelly beans with a standard deviation of 8. A researcher believes that the number of jelly beans going into each package is less than 375. She purchases 16 packages, counted the number of jelly beans in these packages and found an average of 368 jelly beans with a standard deviation of 10. Match the following with the correct number on the right. The appropriate hypotheses are Ho: Ha: Is this a one-tail or two tail test? A p-value of .023 is computed. Assume alpha is 0.01. Do we reject or fail to reject the null hypothesis? Construct a 95% confidence interval. (round to 2 decimal places)

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