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. 99,606 81,246 78,319 67,413 51,386 67,793 93,612 66,379 78,585 74,428 44,717 86,158 60,689 57,604 54,609 77,910 47,315 98,283 80,674 92,977 63,418 74,704 50,718 61,151 91,747 83,729 79,881 64,386 73,507 57,094 46,893 89,013 75,636 62,102 82,815 (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. ________<μ<________ (Round to the nearest integer 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
|
99,606 |
81,246 |
78,319 |
67,413 |
51,386 |
67,793 |
93,612 |
66,379 |
|
|
78,585 |
74,428 |
44,717 |
86,158 |
60,689 |
57,604 |
54,609 |
77,910 |
|
|
47,315 |
98,283 |
80,674 |
92,977 |
63,418 |
74,704 |
50,718 |
61,151 |
|
|
91,747 |
83,729 |
79,881 |
64,386 |
73,507 |
57,094 |
46,893 |
89,013 |
|
|
75,636 |
62,102 |
82,815 |
|
|
|
|
|
|
(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.
________<μ<________
(Round to the nearest integer as needed.)
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