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21 January, 19:02

A courier service advertises that its average delivery time is less than six hours for local deliveries. A random sample of size 10 of the amount of time this courier takes to deliver packages to an address across town was taken. The true standard deviation is not known. A hypothesis test will be run to determine if there is sufficient evidence to support the courier's advertised claim. What case is best

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  1. 21 January, 19:26
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    Answer, Step-by-step explanation:

    According to the exercise, we evaluate the delivery time of a courier company and we will hypothesize the best case with a sample size of 10, which is:

    Small sample T test for single mean

    The hypothesis that we will develop will be the following:

    null hypothesis = mu> = 6

    hypothesis alternativa: <6
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