Part 0 5 Part 1 of 5 2 3 Ho H 4 Is there a doctor in the house A market research firm reported the mean annual earnings of all family practitioners in the United States was 178 258 A random sample of 44 family practitioners in Los Angeles had mean earnings of x 193 250 with a standard deviation of 41 407 Do the data provide sufficient evidence to conclude that the mean salary for family practitioners in Los Angeles differs from the national average Use the a 0 01 level of significance and the P value method with the TI 84 Plus calculator 5 a State the appropriate null and alternate hypotheses This hypothesis test is a Choose one Y test O O 6 X 00 7 0 0 0 co 7 Hel 40 M d
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