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Author Question: Two samples of sizes 25 and 35 are independently drawn from two normal populations, where the ... (Read 159 times)

pepyto

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on: Jun 24, 2018
Two samples of sizes 25 and 35 are independently drawn from two normal populations, where the unknown population variances are assumed to be equal. The number of degrees of freedom of the equal-variances t-test statistic is:
 a. 60.
  b. 59.
  c. 58.
  d. 35.

Question 2

A political analyst in Texas surveys a random sample of registered Democrats and compares the results with those obtained from a random sample of registered Republicans. This would be an example of:
 a. Independent samples.
  b. dependent samples.
  c. Independent samples only if the sample sizes are equal.
  d. Dependent samples only if the sample sizes are equal.


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catron30

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

C

Answer to Question 2

A


pepyto

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Reply 2 on: Jun 24, 2018
Thanks for the timely response, appreciate it

nguyenhoanhat

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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