The annual earmings (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 standard deviation, and (c) construct a 98% confidence Interval for the population mean. 100,328 80,676 78,344 67,552 51,806 67,447 94,688 65,728 79,537 73,501 44,328 87,224 60,548 58,256 55,056 77,786 47,594 98,728 81,492 92,605 63,891 74,013 50,948 60,525 91,553 84,457 80,441 64,033 74,365 57,304 47,192 89,841 75,278 62,238 82,906 (a) Find the sample mean. x= 72063.11 (Type an integer or decimal rounded to two decimal places as needed.) (b) Find the sample standard deviation. (Type an integer or decimal rounded to two decimal places as needed.)

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The annual earmings (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 standard deviation, and (c) construct a 98% confidence Interval for
the population mean.
100,328 80,676 78,344 67,552 51,806 67,447 94,688 65,728
79,537 73,501 44,328 87,224 60,548 58,256 55,056 77,786
47,594 98,728 81,492 92,605 63,891 74,013 50,948 60,525
91,553 84,457 80,441 64,033 74,365 57,304 47,192 89,841
75,278 62,238 82,906
(a) Find the sample mean.
x= 72063.11 (Type an integer or decimal rounded to two decimal places as needed.)
(b) Find the sample standard deviation.
(Type an integer or decimal rounded to two decimal places as needed.)
Transcribed Image Text:The annual earmings (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 standard deviation, and (c) construct a 98% confidence Interval for the population mean. 100,328 80,676 78,344 67,552 51,806 67,447 94,688 65,728 79,537 73,501 44,328 87,224 60,548 58,256 55,056 77,786 47,594 98,728 81,492 92,605 63,891 74,013 50,948 60,525 91,553 84,457 80,441 64,033 74,365 57,304 47,192 89,841 75,278 62,238 82,906 (a) Find the sample mean. x= 72063.11 (Type an integer or decimal rounded to two decimal places as needed.) (b) Find the sample standard deviation. (Type an integer or decimal rounded to two decimal places as needed.)
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