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. 100,107 81,115 77,928 67,923 51,470 67.449 94,660 65,583 O 78,927 74,311 44,298 86,286 60,460 57 786 55,372 77 728 47,372 98,906 81,344 92,217 63,981 74,412 50,769 60,261 91,316 84,604 79,878 63,741 73,987 57,221 46,863 89,932 74,969 61,333 82,471 (a) Find the sample mean. X3= (Type an integer or decimal rounded to two decimal places as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A. Find the sample mean
B. Find the sample standard deviation 

C. Construct a 98% confidence interval for the population mean

(please show what numbers you are putting into the formula for part b)

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.
100,107 81,115
77,928
67,923
51,470
67,449 94,660 65,583
78,927
74,311
44,298
86,286
60,460
57,786 55,372 77,728
47,372
98,906
81,344
92,217
63,981
74,412 50,769 60,261
91,316
84,604
79,878 63,741
73,987
57,221 46,863 89,932
74,969 61,333
82,471
(a) Find the sample mean.
(Type an integer or decimal rounded to two decimal places 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. 100,107 81,115 77,928 67,923 51,470 67,449 94,660 65,583 78,927 74,311 44,298 86,286 60,460 57,786 55,372 77,728 47,372 98,906 81,344 92,217 63,981 74,412 50,769 60,261 91,316 84,604 79,878 63,741 73,987 57,221 46,863 89,932 74,969 61,333 82,471 (a) Find the sample mean. (Type an integer or decimal rounded to two decimal places as needed.)
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