annual earnings (in dollars) of 35 randomly selected mi- ndard deviation, and (c) construct a 98% confidence inter 0,316 80,452 77,570 67,230 51,710 68,105 9,751 74,167 44,418 99,156 81,188 86,803 60,971 57,622 92,459 63,159 73,976 7,676 1,761 83,574 80,389 63,684 73,548 56,79 6,084 62,271 82,093

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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.
100,316 80,452
77,570
67,230
51,710
68,105
93,775
65,897 O
79,751
74,167
44,418
86,803
60,971
57,622 54,855 77,905
47,676
99,156
81,188
92,459
63,159
73,976
50,914
61,020
91,761
83,574
80,389
63,684
73,548
56,791
46,819
90,183
76,084
62,271
82,093
(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.)
(c) Construct a 98% confidence interval for the population mean.
Enter your answer in each of the answer boxes.
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. 100,316 80,452 77,570 67,230 51,710 68,105 93,775 65,897 O 79,751 74,167 44,418 86,803 60,971 57,622 54,855 77,905 47,676 99,156 81,188 92,459 63,159 73,976 50,914 61,020 91,761 83,574 80,389 63,684 73,548 56,791 46,819 90,183 76,084 62,271 82,093 (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.) (c) Construct a 98% confidence interval for the population mean. Enter your answer in each of the answer boxes.
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