Ask Question
17 April, 03:52

You want to test whether or not the following sample of 30 observations follows a normal distribution. The mean of the sample equals 11.83 and the standard deviation equals 4.53. 2 3 5 5 7 8 8 9 9 10 11 11 12 12 12 12 13 13 13 14 15 15 15 16 16 17 17 18 18 19 The hypothesis is to be tested at the 5% level of significance. If the expected frequencies for the classes are equal to 5, what is the critical value of the test statistic?

Select one:

A. 1.645

B. 1.96

C. 7.815

D. 12.592

+4
Answers (2)
  1. 17 April, 04:10
    0
    It's c because u round
  2. 17 April, 04:20
    0
    D

    Step-by-step explanation:

    Degree of freedom, df is given by the following

    df = (number of rows-1) * (number of columns-1)

    Given:

    number of rows = 6

    number of columns = 3

    Hence, df = (6-1) * (3-1) = 10

    We will choose the option where the value is greater than or equal to 10,

    Hence, Option D is correct.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “You want to test whether or not the following sample of 30 observations follows a normal distribution. The mean of the sample equals 11.83 ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers