The annual

he annual earnings (in dollars) of 35 randomly selected microbiologists are shown in the data table. Use the data to (a) find the sample mean, (b) find the sample tandard deviation, and (c) construct a 98% confidence interval for the population mean. 99,699 80,573 77,382 67,233 51,230 67,982 94,774 66,339 78,648 73,907 44,386 87,052 61,121 57,963 54,523 78,095 47,902 98,347 81,121 93,348 63,817 74,815 50,698 60,618 91,589 83,396 80,167 64,350 73,693 57,361 47,073 89,470 75,086 61,806 82,576 ) Find the sample mean. (Type an integer or decimal rounded to two decimal places as needed.)