For each situation, state the null and alternative hypotheses (Type mu' for the symbol j, eg mu 1 for the mean is greater than 1, mu 1 for the mean is less than 1, mu 1 for the mean is not equal to 1 Please do not include units such as 'mm or S in your answer) (a) The diameter of a spindle in a small motor is supposed to be 5 1 milimeters (mm) with a standard deviation of 0 2 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 10 spindles to determine whether the mean diameter has moved away from the required measurement Suppose the sample has an average diameter of 5 17 mm H (b) Deborah thinks that prices in Springfield are lower than the rest of the country She reads that the nationwide average price of a certain brand of laundry detergent is $22 05 with standard deviation $1 19 She takes a sample from 4 local Springfield stores and find the average price for this same brand of detergent is $20 87 Ha H

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For each situation, state the null and alternative hypotheses (Type mu' for the symbol j, eg mu>1 for the mean is greater than 1,

For each situation, state the null and alternative hypotheses (Type mu' for the symbol j, eg mu>1 for the mean is greater than 1, mu

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