Mathematics, 07.03.2020 02:52 SchoolSucks234

The calibration of a scale is to be checked by weighing a 10-kg test specimen 25 times. Suppose that the results of different weighings are independent of one another and thatthe weight on each trial is normally distributed withσ= 0.200kg. Letμdenote the trueaverage weight reading on the scale.

a. What hypotheses should be tested?
b. With thesample mean itself as the test statistic, what is the P-value when¯x= 9.85, and what would you conclude at significance level 0.01?

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The calibration of a scale is to be checked by weighing a 10-kg test specimen 25 times. Suppose that...