Mathematics, 06.05.2020 04:26 ahoney2233
Milk has a pH of 6.7, which is slightly acidic. Cheese makers add a culture to milk to lower the pH, making it more acidic and turning it into cheese. A manufacturer is experimenting with a new culture that claims to produce a pH of 5.2, which is perfect for cheddar cheese. A set of 50 test batches resulted in an average pH of 5.11. A one-sample tt-test was conducted to investigate whether there is evidence that the mean pH is different from 5.2. The test resulted in a pp-value of 0.018.
Which of the following is a correct interpretation of the p-value?
a)The probability that the true pH is equal to 5.2 is 0.018.
b)The probability that the true pH is different from 5.2 is 0.018.
c)The probability of observing a sample mean of 5.11 or less is 0.018 if the true mean is 5.2.
d)The probability of observing a sample mean of 5.11 or more is 0.018 if the true mean is 5.2.
e)The probability of observing a sample mean of 5.11 or less, or of 5.29 or more, is 0.018 if the true mean is 5.2.
Answers: 2
Mathematics, 22.06.2019 01:40, leylaanddade
Amass weighing 16 pounds stretches a spring 8/3 feet. the mass is initially released from rest from a point 2 feet below the equilibrium position, and the subsequent motion takes place in a medium that offers a damping force that is numerically equal to 1/2 the instantaneous velocity. find the equation of motion if the mass is driven by an external force equal to f(t)=cos(2t).
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Mathematics, 22.06.2019 02:10, lakhanir2013
What are the solutions of the equation x4 + 6x2 + 5 = 0? use u substitution to solve.
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