At least one of the answers above is NOT correct. For each situation, state the null and alternative hypotheses: (Type "mu" for the symbol μ, e.g. mu> 1 for the mean is greater than 1, mu <1 for the mean is less than 1, mu not = 1 for the mean is not equal to 1. Please do not include units such as "mm" or "$" in your answer.) (a) The diameter of a spindle in a small motor is supposed to be 3.1 millimeters (mm) with a standard deviation of 0.1 mm. If the spindle is either too small or too large, the motor will not work properly. The manufacturer measures the diameter in a sample of 53 spindles to determine whether the mean diameter has moved away from the required measurement. Suppose the sample has an average diameter of 3.24 mm. Ho: 3.1 Ha 3.1 (b) Harry thinks that prices in Caldwell, Idaho, are higher than the rest of the country. He reads that the nationwide average price of a certain brand of laundry detergent is $15.95 with standard deviation $0.70. He takes a sample from 30 local Caldwell stores and finds the average price for this same brand of detergent is $18.05. Ho: 15.95 H: 15.95 ***3.1 and 15.95 are NOT correct answers. I have already used two of my questions for this same problem, and was given back the same answers that are shown as incorrect in the photo. Please help me

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 2CST

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Please, please, please do not give me the same answers that I have already listed as incorrect. This will be the third time I have asked a question with this same problem because I keep getting the same, incorrect answer back.

Transcribed Image Text:At least one of the answers above is NOT correct. For each situation, state the null and alternative hypotheses: (Type "mu" for the symbol μ, e.g. mu> 1 for the mean is greater than 1, mu <1 for the mean is less than 1, mu not = 1 for the mean is not equal to 1. Please do not include units such as "mm" or "$" in your answer.) (a) The diameter of a spindle in a small motor is supposed to be 3.1 millimeters (mm) with a standard deviation of 0.1 mm. If the spindle is either too small or too large, the motor will not work properly. The manufacturer measures the diameter in a sample of 53 spindles to determine whether the mean diameter has moved away from the required measurement. Suppose the sample has an average diameter of 3.24 mm. Ho: 3.1 Ha 3.1 (b) Harry thinks that prices in Caldwell, Idaho, are higher than the rest of the country. He reads that the nationwide average price of a certain brand of laundry detergent is $15.95 with standard deviation $0.70. He takes a sample from 30 local Caldwell stores and finds the average price for this same brand of detergent is $18.05. Ho: 15.95 H: 15.95 ***3.1 and 15.95 are NOT correct answers. I have already used two of my questions for this same problem, and was given back the same answers that are shown as incorrect in the photo. Please help me

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