Mathematics, 15.07.2021 16:30, krazziekidd2p845ri
A textile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. The company wishes to test the hypothesis H_0: mu = 12 against H_1: mu < 12, using a random sample of four specimens. Round your answers to 4 decimal places.1. What is the type I error probability, if the critical region is defined as x < 11.5 kilograms?2. Find beta for the case where the true mean elongation is 11.26 kilograms.3. Find beta for the case where the true mean is 11.5 kilograms.
Answers: 1
Mathematics, 21.06.2019 21:40, oprajapati
The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?
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Mathematics, 21.06.2019 23:50, tatibean26
The functions f(x) and g(x) are shown in the graph f(x)=x^2 what is g(x) ?
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Mathematics, 22.06.2019 01:10, onlymyworld27
To find the inverse of a number a, one can use the equation f(c) = a-1/c=0 where c is the inverse of a use the secant method of finding roots of equations to find the inverse of a = 2.5 ,er = 0.001%
Answers: 3
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