The following data represent the concentration of dissolved organic carbon (mg/L) collected from 20 samples of organic soil. Assume that the population is normally distributed. Complete parts (a) through (c) on the right. 16.87 29.80 8.81 27.10 16.51 22,49 11.90 30.91 20.46 14.90 14.86 33.67 19.80 5.20 15.35 14.86 9.72 8.09 7.40 (a) Find the sample mean. 18.30 The sample mean is 17.35. (Round to two decimal places as needed.) (b) Find the sample standard deviation. The sample standard deviation is 8.14. (Round to two decimal places as needed.) (c) Construct a 98% confidence interval for the population mean u. The 98% confidence interval for the population mean u is ( ,). (Round to two decimal places as needed.)
The following data represent the concentration of dissolved organic carbon (mg/L) collected from 20 samples of organic soil. Assume that the population is normally distributed. Complete parts (a) through (c) on the right. 16.87 29.80 8.81 27.10 16.51 22,49 11.90 30.91 20.46 14.90 14.86 33.67 19.80 5.20 15.35 14.86 9.72 8.09 7.40 (a) Find the sample mean. 18.30 The sample mean is 17.35. (Round to two decimal places as needed.) (b) Find the sample standard deviation. The sample standard deviation is 8.14. (Round to two decimal places as needed.) (c) Construct a 98% confidence interval for the population mean u. The 98% confidence interval for the population mean u is ( ,). (Round to two decimal places as needed.)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2AGP
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Transcribed Image Text:The following data represent the concentration of dissolved organic carbon (mg/L) collected from 20 samples of organic soil. Assume that the population is normally distributed. Complete parts (a) through (c) on the right.
16.87
29.80
8.81
27.10
16.51
22,49
11.90
30.91
20.46
14.90
14.86
33.67
19.80
5.20
15.35
14.86
9.72
8.09
7.40
(a) Find the sample mean.
18.30
The sample mean is 17.35.
(Round to two decimal places as needed.)
(b) Find the sample standard deviation.
The sample standard deviation is 8.14.
(Round to two decimal places as needed.)
(c) Construct a 98% confidence interval for the population mean u.
The 98% confidence interval for the population mean u is ( ,).
(Round to two decimal places as needed.)
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