Is there a doctor in the house? A market research firm reported the mean annual earnings of all family practitioners in the

Question

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 43 family practitioners in Los Angeles had mean earnings of x = $193,010 with
a standard deviation of $42,777. Do the data provide sufficient evidence to conclude that the mean salary for family practitioners
in Los Angeles is greater than the national average? Use the a= 0.05 level of significance and the P-value method with the TI-84
Plus calculator.
 
Part 1 of 4
State the appropriate null and alternate hypotheses.
Ho
H₁ :
This hypothesis test is a (Choose one)
test.

Kunduz · Accepted Answer

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