From a sample of size 100, the following descriptive measures ...

[aabwk4]

From a sample of size 100, the following descriptive measures were calculated: median = 23, mean = 20, standard deviation = 5, range = 35; seventy-five sample values are between 10 and 30; and ninety-nine sample values are between 5 and 35 . If you knew the sample mean, median, and standard deviation were correct, which one of the following conclusions might you draw?
 a. The distribution is skewed to the right because the median exceeds the mean.
  b. The range must have been calculated incorrectly because it should not be seven times the standard deviation's value.
  c. The number of sample values between 10 and 30 was miscounted.
  d. The number of sample values between 5 and 35 must have been miscounted because all 100 values must be in this interval.
  e. All of these.

Question 2

If two samples have the same size, the samples must be dependent.
  Indicate whether the statement is true or false

[ecabral0]

Answer to Question 1

B

Answer to Question 2

F

[aabwk4]

Gracias!

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