The times of first sprinkler activation for a series of tests (n = 13) with fire prevention sprinkle systems using an aqueous film-forming were (in sec). 28 42 23 28 24 36 31 34 25 28 29 23 25 Results derived from the data: sample mean = 28.923; sample standard deviation = 5.6193. The system has been designed so that true average activation time is at most 25 sec under such conditions. Does the data strongly contradict the validity of this design specification? Test the relevant hypotheses at significance level .05 using the P-value approach. Define the hypothesis test: Ho H Ha H Sketch a bell-shaped curve like that shown, and clearly define the "Reject" and "Do Not Reject" areas of the curve, along with the critical value(s) of the test statistic based on the significance level. Raw 25 0 Clearly define and compute the value of the appropriate test statistic based on the data (express your answer using 3 decimal places: x.XXX). 0 Based on the tables, list the upper and lower bounds of the p-value associated with this value of your test statistic? Note: you do not need to interpolate to find the p-value. < p < Clearly state your conclusion with respect to the null hypothesis Ho.
The times of first sprinkler activation for a series of tests (n = 13) with fire prevention sprinkle systems using an aqueous film-forming were (in sec). 28 42 23 28 24 36 31 34 25 28 29 23 25 Results derived from the data: sample mean = 28.923; sample standard deviation = 5.6193. The system has been designed so that true average activation time is at most 25 sec under such conditions. Does the data strongly contradict the validity of this design specification? Test the relevant hypotheses at significance level .05 using the P-value approach. Define the hypothesis test: Ho H Ha H Sketch a bell-shaped curve like that shown, and clearly define the "Reject" and "Do Not Reject" areas of the curve, along with the critical value(s) of the test statistic based on the significance level. Raw 25 0 Clearly define and compute the value of the appropriate test statistic based on the data (express your answer using 3 decimal places: x.XXX). 0 Based on the tables, list the upper and lower bounds of the p-value associated with this value of your test statistic? Note: you do not need to interpolate to find the p-value. < p < Clearly state your conclusion with respect to the null hypothesis Ho.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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Transcribed Image Text:The times of first sprinkler activation for a series of tests (n = 13) with fire prevention sprinkle
systems using an aqueous film-forming were (in sec).
28 42 23 28 24 36 31 34 25 28 29 23 25
Results derived from the data: sample mean = 28.923; sample standard deviation = 5.6193.
The system has been designed so that true average activation time is at most 25 sec under
such conditions. Does the data strongly contradict the validity of this design specification?
Test the relevant hypotheses at significance level .05 using the P-value approach.
Define the hypothesis test:
Ho H
Ha H
Sketch a bell-shaped curve like that shown, and clearly define the "Reject" and "Do Not
Reject" areas of the curve, along with the critical value(s) of the test statistic based on the
significance level.
Raw
25
0
Clearly define and compute the value of the appropriate test statistic based on the data
(express your answer using 3 decimal places: x.XXX).
0
Based on the tables, list the upper and lower bounds of the p-value associated with this
value of your test statistic? Note: you do not need to interpolate to find the p-value.
< p <
Clearly state your conclusion with respect to the null hypothesis Ho.
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