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

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter7: Applying Fractions

Section7.2: Proportions

Problem 47WE

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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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