Chapter 11, Problem T11.4SPT

To determine

To select correct P-value from given options.

Answer to Problem T11.4SPT

Option c) is correct.

Explanation of Solution

Given:

Race/Ethnicity	Number of tickets	Proportion
White	69	0.55
Black	52	0.3
Hispanic	18	0.08
Other	9	0.07

  ${\chi }^2=6.57$

Calculation:

The degrees of freedom = df = x-1 = 4-1 = 3

The excel formula for p-value is, =CHIDIST(6.57,3)

P-value = 0.09

This P-value is between 0.05 < P < 0.10.

Hence, option c) is correct.