A market research firm reported that the mean annual earnings of all family practitioners in the United States was $178,011. A random sample of 38 family practitioners in New York that month had mean...

A market research firm reported that the mean annual earnings of all family practitioners in the United States was $178,011. A random sample of 38 family practitioners in New York that month had mean earnings of $216,104 with a standard deviation of $35,332. You wish to test whether family practitioners in New York make more than the national average. Use .01 level of significance.