Question

Question 26 (1 point) The government conducts a survey of the population and finds that 119 of 590 respondents report voting for party A last election, and 109 of 539 respondents report voting for party A for the next election. If you are conducting a hypothesis testing with a null hypothesis of Pi = P2, calculate the test-statistic (z-score) for this test where you are testing for pi - P2. Note: 1- Round any intermediate numbers to 4 decimal places. 2- Round your final answer to 2 decimal places. Enter your final answer with 2 decimal places. Your Answer: Answer

Answer 1

The statistic software output for this problem is:

Two sample proportion summary hypothesis test: Pi: proportion of successes for population 1 P2 : proportion of successes for population 2 P1-P2 : Difference in proportions Ho: P1 - P2 = 0 HA: P1 - P2 = 0 Hypothesis test results: Difference Count1 Totali Count2 Total2 Sample Diff. Std. Err. Z-Stat P-value P1 - P2 119 590 109 539 -0.00053142983 0.023920071 -0.0222169 0.9823

Test statistics = -0.02