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. 100,481 80,500 77,492 68,137 51,154 67,844 94,595 65,771 78,913 73,903 44,543 87,265 60,856 57,435 54,820 77,763 47,477 98,525 81,061 92,856 63,650 74,364 50,811 60,577 91,155 83,675 80,486 63,963 73,792 56,780 47,040 88,929 75,943 61,491 82,415 (a) Find the sample mean. x= (Type an integer or decimal rounded to two decimal places as needed.)
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. 100,481 80,500 77,492 68,137 51,154 67,844 94,595 65,771 78,913 73,903 44,543 87,265 60,856 57,435 54,820 77,763 47,477 98,525 81,061 92,856 63,650 74,364 50,811 60,577 91,155 83,675 80,486 63,963 73,792 56,780 47,040 88,929 75,943 61,491 82,415 (a) Find the sample mean. x= (Type an integer or decimal rounded to two decimal places 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.
100,481
|
80,500
|
77,492
|
68,137
|
51,154
|
67,844
|
94,595
|
65,771
|
|
78,913
|
73,903
|
44,543
|
87,265
|
60,856
|
57,435
|
54,820
|
77,763
|
|
47,477
|
98,525
|
81,061
|
92,856
|
63,650
|
74,364
|
50,811
|
60,577
|
|
91,155
|
83,675
|
80,486
|
63,963
|
73,792
|
56,780
|
47,040
|
88,929
|
|
75,943
|
61,491
|
82,415
|
|
|
|
|
|
|
(a) Find the sample mean.
x=
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