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Author Question: Which of the following are considered numerical summary measures? a. mean and variance b. variance ... (Read 43 times)

abarnes

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on: Jun 24, 2018
Which of the following are considered numerical summary measures?
 a. mean and variance
  b. variance and correlation
  c. correlation and covariance
  d. covariance and variance
  e. first quartile and third quartile

Question 2

For statistical inference about the mean of a single population when the population standard deviation is unknown, the degrees for freedom for the t-distribution equal n - 1 because we lose one degree of freedom by using the:
 a. sample mean as an estimate of the population mean.
  b. sample standard deviation as an estimate of the population standard deviation.
  c. sample proportion as an estimate of the population proportion.
  d. sample size as an estimate of the population size.


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kristenb95

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

c

Answer to Question 2

A


abarnes

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Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

Animal_Goddess

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Reply 3 on: Yesterday
Wow, this really help

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