Use the following contingency table to complete (a) and (b) below. Compute the e

Question

Use the following contingency table to complete (a) and (b) below. Compute the expected frequencies for each cell Compute X_stat^2 Is it significant at alpha = 0.01? Set up the null and alternative hypotheses to test. Choose the correct answer below. H_0: Not all pi_j are equal (where j = A. B, C) H_1: pi_A = pi_B = pi_c H_0;pi_A = pi_B = pC H_1: not all pi_j are equal (where j = A, B, C) H_0: pi_1 = pi_2 H_1: not all pi_j are equal (where j = 1, 2) H_0: not all pi_j are equal (where j = 1, 2) H_1: pi_1 = pi_2 compute x_stat^2 x_stat^2 = _______(Round to three decimal places as needed.) Find the p-value. p-value =_______(Round to three decimal places as needed.) Is x_stat^2 significant at alpha = 0.01? Yes, because the p-value is less than the level of significance. No, because the p-value is greater than or equal to the level of significance. No, because the p-value is less than the level of significance. Yes, because the p-value is greater than or equal to the level of significance. A newspaper reported on preferred types of office communication by different age groups. Suppose the results were based on a survey of 500 respondents in each

Explanation / Answer

Ho:,PiA = PiB = PiC              
Ha: not all Pij are equal         

E - Table Matrix

E - Table

^2 Test Statistic =3.419              
^2 degrees of freedom ,(r-1) ( c-1) = 1 * 2 = 2 =, ^2 tab is 5.99               
^2 p_value =0.180956248              
| ^2 tab | > | ^2 cal | i.e.Do n'tReject Ho              

    No, because the p-value is greater than or equal to the level of significance.

A B C 1 15 30 45 90 A1 2 30 35 45 110 A2 Totals 45 65 90 200 B1 B2 B3

Related Questions

Navigate

• Browse (All)
• Browse U
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.