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Do people tend to spend money differently when using a credit card compared to cash? The following data shows a random sample of credit card purchases and a random sample of cash purchases. m Credit Cash Is there evidence to conclude that people spend money differently when using a credit ca rd compared to cash? Use the o: = 0.08 level. a. State the null and alternative hypotheses. Ho: '? v ? v Select an answer v H1: ? v ?v Selectananswerv b. Find the critical value and sketch the rejection region. Sketch of Rejection Region: 6-240!23-3-2-10123-3-2-10I23 Critical value(s): (If there are two critical values. list both values separated by a comma) c. Find the test statistic. d. Find the p-value. e. Decide: Select an answer v Hg f. Conclusion: At or = 0.08 significance level. there Select an answer v enough evidence to conclude that people spend money differently when using a credit card compared to cash. Researchers wanted to determine if carpeted rooms contained more bacteria than uncarpeted rooms. The results for measurements (bacteria/cubic foot) for 8 carpeted rooms and 8 uncarpeted rooms are presented in the table below. Carpeted 10.7 13.9 11.7 11.3 13.0 11.2 14.3 13.1 Uncarpeted 7.6 13.0 8.6 10.6 10.7 11.8 8.2 9.3 Carpeted Uncarpeted Can the researchers conclude that carpeted rooms have more bacteria than uncarpeted rooms? Use the a = 0.03 level. a. State the null and alternative hypotheses. Ho: ? v ? Select an answer v H1: ? v ? Select an answer v b. Find the critical value and sketch the rejection region. Sketch of Rejection Region: 2 W - Q Q Q O Critical value(S): (If there are two critical values, list both values separated by a comma) c. Find the test statistic.d. Find the p-value. e. Decide: Select an answer v H9 f. Conclusion: At or = 0.03 significance level, there Select an answer v enough evidence to conclude that carpeted rooms have more bacteria than uncarpeted rooms