ed that the water temperature in Hays County is 72 degrees Fahrenheit year round, which is approximately 22.2 degrees Celsius. Is there evidence that the mean water temperature for Hays County differs from 22.2 degrees Celsius? Use the 0.05 level of significance. State your conclusion in practical language, and show any relevant Rguroo output to support your conclusion. Alternative Hypothesis Ha: Mean of 'Water. Temperature. A.C. is not equal to 22.2 2.5% lower critical value in units of data = 21.933144 2.5% upper critical value in units of data = 22.466856 Sample Mean Std Error Obst Stat 20.7277 0.136073 Test is significant at 5% level. -10.82 DF 2054 2.5% t-Lower Critical -1.96112 2.5% t-Upper Critical 1.96112 P-values 1.41949
ed that the water temperature in Hays County is 72 degrees Fahrenheit year round, which is approximately 22.2 degrees Celsius. Is there evidence that the mean water temperature for Hays County differs from 22.2 degrees Celsius? Use the 0.05 level of significance. State your conclusion in practical language, and show any relevant Rguroo output to support your conclusion. Alternative Hypothesis Ha: Mean of 'Water. Temperature. A.C. is not equal to 22.2 2.5% lower critical value in units of data = 21.933144 2.5% upper critical value in units of data = 22.466856 Sample Mean Std Error Obst Stat 20.7277 0.136073 Test is significant at 5% level. -10.82 DF 2054 2.5% t-Lower Critical -1.96112 2.5% t-Upper Critical 1.96112 P-values 1.41949
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 22PFA
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Question
Transcribed Image Text:It is commonly stated that the water temperature in Hays County is 72 degrees Fahrenheit
year round, which is approximately 22.2 degrees Celsius. Is there evidence that the mean
water temperature for Hays County differs from 22.2 degrees Celsius? Use the 0.05 level of
significance. State your conclusion in practical language, and show any relevant Rguroo
output to support your conclusion.
Alternative Hypothesis Ha: Mean of Water. Temperature. .A.C. is not equal to 22.2
2.5% lower critical value in units of data = 21.933144
2.5% upper critical value in units of data = 22.466856
Sample Mean
Std Error
Obst Stat
20.7277
0.136073
Test is significant at 5% level.
Observed Data Scale
21.0 21.5 22.0
-10.82
Obs Sample Mean=20,728
P-Value 1.41956-26
22.5
P-value Graph: t-Test
Null density (in units of data): Student t; mean = 22.2, scale = 0.13607, df = 2054
Alternative Hypothesis Ha: Mean of Water Temperature. A.C. is not equal to 22.2
23.0 23.5
DF
Sample Mean [Water Temperature.A.C
2054
2.5% t-Lower
Critical
-1.96112
-10
2.5% t-Upper
Critical
t Distribution Scale (df = 2054)
0
1.96112
L-Vales
P-value
1.41949-26
A Obst Stat -10.82
P-Value 1.4195e-26
10
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