Question 1
The selection of the null and alternative hypotheses always follows what the experimenter expects or wants to see.
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True
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False
Question 2
To test the effects of acid rain on the growth of white pine trees, a conservationist measures the diameter (in centimeters) of 200 white pines in the Allegheny National Forest in northwest Pennsylvania. The average diameter of the sampled trees is 23.42 cm. Does the sample provide sufficient evidence to conclude that the current mean diameter of the white pines is less than that recorded 50 years ago (μ= 24.8) if the standard deviation is 6 cm? Calculate thep-value and make an appropriate decision. (Useα= 0.05).
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p-value = 0.9994; fail to rejectH0
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p-value = 0.0006; rejectH0
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p-value = 0.0006; fail to rejectH0
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p-value = 0.9994; rejectH0
Exponential growth in the Canadian migratory population of the whooping crane after 70 years of cons
black and white face
Using an ice bath to test the fuel temperature sensor.
World Population Growth
chemistry lab - acid base titration