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Author Question: In hypothesis testing, a Type 1 error occurs when a. the null hypothesis is not rejected when the ... (Read 6405 times)

burton19126

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on: Jul 24, 2018
In hypothesis testing, a Type 1 error occurs when
 a. the null hypothesis is not rejected when the null hypothesis is true.
  b. the null hypothesis is rejected when the null hypothesis is true.
  c. the null hypothesis is not rejected when the alternative hypothesis is true.
  d. the null hypothesis is rejected when the alternative hypothesis is true.

Question 2

The level of nitrogen oxides (NOX) in the exhaust of a particular car model can be modeled by the normal distribution with mean 0.9 grams per mile and standard deviation of 0.16 grams per mile. A random sample of 4 of these NOX levels is to be selected. What is the probability that the average NOX level of the 4 selected cars is greater than 1 gram per mile?


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chreslie

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Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

0.1056


burton19126

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Reply 2 on: Jul 24, 2018
Excellent

bitingbit

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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