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28-04-2024
Mathematics

Answered

A market research firm reported the mean annual earnings of all family practitioners in the United States was $178,258. A random sample of 52 family practitioners in Los Angeles had mean earnings of $193,130 with a standard deviation of $42,047. 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=0.10 level of significance and the P-value method with the TI-84 Plus calculator. Compute the value of the test statistic. Round the answer to two decimal places.

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