Is the proportion of wildfires caused by humans in the south lower than the proportion of wildfires caused by humans in the west? 358 of the 563 randomly selected wildfires looked at in the south were caused by humans while 358 of the 526 randomly selected wildfires looked at the west were caused by humans. What can be concluded at the a = 0.05 level of significance? %3D a. For this study, we should use z-test for the difference between two population proportions b. The null and alternative hypotheses would be: Ho: р1 p2 (please enter a decimal) H1: p1 p2 V (Please enter a decimal) c. The test statistic | z (please show your answer to 3 decimal places.) d. The p-value = (Please show your %3D answer to 4 decimal places.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
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Part c and d only please

Is the proportion of wildfires caused by humans in
the south lower than the proportion of wildfires
caused by humans in the west? 358 of the 563
randomly selected wildfires looked at in the south
were caused by humans while 358 of the 526
randomly selected wildfires looked at the west were
caused by humans. What can be concluded at the a
= 0.05 level of significance?
a. For this study, we should use
z-test for the difference between two population proportions
b. The null and alternative hypotheses would be:
Ho: p1
p2
(please enter a decimal)
H1: p1
p2
(Please enter a decimal)
c. The test statistic z
(please show your answer to 3 decimal
places.)
d. The p-value =
(Please show your
answer to 4 decimal places.)
Transcribed Image Text:Is the proportion of wildfires caused by humans in the south lower than the proportion of wildfires caused by humans in the west? 358 of the 563 randomly selected wildfires looked at in the south were caused by humans while 358 of the 526 randomly selected wildfires looked at the west were caused by humans. What can be concluded at the a = 0.05 level of significance? a. For this study, we should use z-test for the difference between two population proportions b. The null and alternative hypotheses would be: Ho: p1 p2 (please enter a decimal) H1: p1 p2 (Please enter a decimal) c. The test statistic z (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.)
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