The 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 standard​ deviation, and​ (c) construct a​ 98% confidence interval for the population mean.99,787, 80,717, 77,403, 68,172, 51,312, 68,142, 94,108, 65,90379,143, 74,503, 44,731, 87,244, 60,749, 57,817, 55,126, 78,73847,902, 99,445, 80,392, 92,412, 63,943, 74,342, 51,108, 60,73692,334, 84,077, 80,265, 64,130, 74,307, 56,545, 47,168, 89,56275,338,  61,842, 82,989a) Find the sample mean.X=_____  (Type an integer or decimal rounded to two decimal places as​ needed.)

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Asked Mar 29, 2019
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The 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 standard​ deviation, and​ (c) construct a​ 98% confidence interval for the population mean.

99,787, 80,717, 77,403, 68,172, 51,312, 68,142, 94,108, 65,903

79,143, 74,503, 44,731, 87,244, 60,749, 57,817, 55,126, 78,738

47,902, 99,445, 80,392, 92,412, 63,943, 74,342, 51,108, 60,736

92,334, 84,077, 80,265, 64,130, 74,307, 56,545, 47,168, 89,562

75,338,  61,842, 82,989

a) Find the sample mean.

X=_____  (Type an integer or decimal rounded to two decimal places as​ needed.)

 

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