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. 99,622 80,705 77,853 67,971 51,119 67,478 93,716 66,516 D 78,986 74,124 44,855 86,376 61,295 57,675 55,113 78,511 47,643 98,479 80,850 92,061 63,978 74,498 50,671 60,987 91,347 83,543 79,750 63,574 74,265 56,945 47,259 89,787 75,755 61,528 82,744 (a) Find the sample mean. x = (Type an integer or decimal rounded to two decimal places as needed.) (b) Find the sample standard deviation. s = (Type an integer or decimal rounded to two decimal places as needed.) (c) Construct a 98% confidence interval for the population mean. (Round to the nearest integer as needed.)

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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.
99,622
80,705
77,853
67,971
51,119
67,478 93,716
66,516 O
78,986
74,124
44,855
86,376
61,295
57,675 55,113 78,511
47,643
98,479
80,850
92,061
63,978
74,498 50,671
60,987
91,347
83,543
79,750
63,574
74,265
56,945 47,259
89,787
75,755
61,528
82,744
(a) Find the sample mean.
X =
(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.)
S=
(c) Construct a 98% confidence interval for the population mean.
(Round to the nearest integer as needed.)
Transcribed Image Text: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. 99,622 80,705 77,853 67,971 51,119 67,478 93,716 66,516 O 78,986 74,124 44,855 86,376 61,295 57,675 55,113 78,511 47,643 98,479 80,850 92,061 63,978 74,498 50,671 60,987 91,347 83,543 79,750 63,574 74,265 56,945 47,259 89,787 75,755 61,528 82,744 (a) Find the sample mean. X = (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.) S= (c) Construct a 98% confidence interval for the population mean. (Round to the nearest integer as needed.)
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