A computer laboratory manager must choose between three brands of battery packs for use in a laboratory of laptop computers. A major concern is the time, in hours, the battery packs will function before needing to be recharged. The manager obtains a random sample of eight observations for each of the three brands and records the information. The following ANOVA table (partial) was constructed for the data:

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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A computer laboratory manager must choose between three brands of battery packs for use in a
laboratory of laptop computers. A major concern is the time, in hours, the battery packs will
function before needing to be recharged. The manager obtains a random sample of eight
observations for each of the three brands and records the information. The following ANOVA table
(partial) was constructed for the data:
Source of Variation
df
MS
F
Treatments
3.529
Error
0.2880
Total
5.1
Complete the ANOVA table.
5.2 Determine whether the data presents sufficient evidence to indicate a significant difference in
mean functioning time before needing recharging among the three brands of battery
packs. Show ALL 7 steps as have been illustrated in the videos on hypothesis testing.
5.3
Rank the three treatment means by using the value of Tukey's honestly significant
difference (HSD) and then explain and interpret the given result in "plain English", using
no more than 2 sentences.
6.5375 6.9125 7.25
*2
X1
X3
Transcribed Image Text:A computer laboratory manager must choose between three brands of battery packs for use in a laboratory of laptop computers. A major concern is the time, in hours, the battery packs will function before needing to be recharged. The manager obtains a random sample of eight observations for each of the three brands and records the information. The following ANOVA table (partial) was constructed for the data: Source of Variation df MS F Treatments 3.529 Error 0.2880 Total 5.1 Complete the ANOVA table. 5.2 Determine whether the data presents sufficient evidence to indicate a significant difference in mean functioning time before needing recharging among the three brands of battery packs. Show ALL 7 steps as have been illustrated in the videos on hypothesis testing. 5.3 Rank the three treatment means by using the value of Tukey's honestly significant difference (HSD) and then explain and interpret the given result in "plain English", using no more than 2 sentences. 6.5375 6.9125 7.25 *2 X1 X3
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