To determine the organic material in a dried lake bed, the percent carbon by mass is measured at two different locations. To compare the means of the two different locations, Location 1 Location 2 Sample (% C) (% C) it must first be determined whether the standard deviations of the two locations 70.40 70.10 are different. 70.30 70.90 For each location, calculate the standard deviation and report it with two signiticant tigures. 3 70.30 70.30 4 70.40 70.80 5 70.20 70.40 location I standard deviation: location 2 standard deviation: What is the calculated F value for comparing the standard deviations? Fak = Are the standard deviations for the two locations signiticantly different at the 95% contidence level? no yes What is the calculated r value used to compare the means of these two locations? Icak = Are the means for the two different locations significantly different at the 95% confidence level? yes no
To determine the organic material in a dried lake bed, the percent carbon by mass is measured at two different locations. To compare the means of the two different locations, Location 1 Location 2 Sample (% C) (% C) it must first be determined whether the standard deviations of the two locations 70.40 70.10 are different. 70.30 70.90 For each location, calculate the standard deviation and report it with two signiticant tigures. 3 70.30 70.30 4 70.40 70.80 5 70.20 70.40 location I standard deviation: location 2 standard deviation: What is the calculated F value for comparing the standard deviations? Fak = Are the standard deviations for the two locations signiticantly different at the 95% contidence level? no yes What is the calculated r value used to compare the means of these two locations? Icak = Are the means for the two different locations significantly different at the 95% confidence level? yes no
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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Transcribed Image Text:Chemistry
To determine the organic material in a dried lake bed, the percent carbon by mass is
Location 1
Location 2
Sample
measured at two different locations. To compare the means of the two different locations,
(% C)
(% C)
it must first be determined whether the standard deviations of the two locations
70.40
70.10
are different.
2
70.30
70.90
For each location, calculate the standard deviation and report it with two
3
70.30
70.30
significant figures.
4
70.40
70.80
70.20
70.40
location I standard deviation:
location 2 standard deviation:
What is the calculated F value for comparing the standard deviations?
Fak =
Are the standard deviations for the two locations significantly different at the 95% confidence level?
по
yes
What is the calculated i value used to compare the means of these two locations?
lcak =
Are the means for the two different locations significantly different at the 95% confidence level?
yes
по
O O
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