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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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Notiap2018 Notiap2018
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6 years ago
The expected value of the difference of two sample means equals the difference of the corresponding population means when:
 a. the populations are normally distributed.
  b. the samples are independent.
  c. the populations are approximately normal and the sample sizes are large.
  d. All of these choices are true.

Q. 2

The effect that business recessions and prosperity have on time series values is an example of the disaster component of a time series.
  Indicate whether the statement is true or false

Q. 3

When we test for differences between the means of two independent populations, we can only use a two-tailed test.
  Indicate whether the statement is true or false

Q. 4

In forecasting, we use data from the past in predicting the future value of the variable of interest.
  Indicate whether the statement is true or false
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charles654charles654
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6 years ago
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Notiap2018 Author
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6 years ago
Genius!!!!!!
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