Author Question: The probability density function for the exponential distribution is bell-shaped and symmetrical ... (Read 75 times)

tiara099 · **on:** Jun 24, 2018

The probability density function for the exponential distribution is bell-shaped and symmetrical around the mean .

Indicate whether the statement is true or false

Question 2

In a goodness-of-fit-test, the null hypothesis states that the data has been obtained from a normally distributed population. The researcher estimated the population mean and population standard deviation from a sample of 400 observations.

In addition, the researcher used 6 categories to test for normality. Using a 5 level of significance, the critical value for this test is:A) 7.815
B) 5.991
C) 11.071
D) 9.488