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Author Question: If the population variance is increased and other factors are the same, the width of a confidence ... (Read 63 times)

storky111

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on: Jul 24, 2018
If the population variance is increased and other factors are the same, the width of a confidence interval for the population mean tends to increase.
  Indicate whether the statement is true or false

Question 2

Indicate whether a negative or a positive correlation coefficient would be expected in a study involving the following two indicated variables: As the amount of aspirin increases, the platelet aggregation decreases.


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dudman123

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

T

Answer to Question 2

Negative


storky111

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Reply #2 on: Jul 24, 2018
Both answers were spot on, thank you once again


dudman123

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Reply #3 on: Jul 24, 2018
Great! Please up vote :D


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