QUESTION 2 An environmentalist wanted to determine if the mean acidity of rain differed among Ipoh, Johor Bah and Kuantan. He randomly selected six rain dates at each city and obtained the following data: Table 2 Ipoh 5.10 5.00 4.91 5.12 4.78 5.30 Johor Bahru 4.80 4.15 4.42 4.65 4.87 4.10 Kuantan 5.45 6.23 5.55 5.10 5.42 Far

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QUESTION 2
An environmentalist wanted to determine if the mean acidity of rain differed among Ipoh, Johor Bahru
and Kuantan. He randomly selected six rain dates at each city and obtained the following data:
Table 2
Ipoh
5.10
5.00
4.91
5.12
4.78
5.20
Johor Bahru
4.80
4.15
4.42
4.65
4.87
4.10
Kuantan
5.45
6.23
5.55
5.10
5.42
5.25
Answer the following questions without using any output from any software.
a) Construct a complete Analysis of Variance table.
b) At <= 0.05, test whether the mean acidity of rain is different among the three cities.
c) Based on the answer in (a) and (b), write a brief conclusion on the mean acidity of rain among
Ipoh, Johor Bahru and Kuantan.
Transcribed Image Text:QUESTION 2 An environmentalist wanted to determine if the mean acidity of rain differed among Ipoh, Johor Bahru and Kuantan. He randomly selected six rain dates at each city and obtained the following data: Table 2 Ipoh 5.10 5.00 4.91 5.12 4.78 5.20 Johor Bahru 4.80 4.15 4.42 4.65 4.87 4.10 Kuantan 5.45 6.23 5.55 5.10 5.42 5.25 Answer the following questions without using any output from any software. a) Construct a complete Analysis of Variance table. b) At <= 0.05, test whether the mean acidity of rain is different among the three cities. c) Based on the answer in (a) and (b), write a brief conclusion on the mean acidity of rain among Ipoh, Johor Bahru and Kuantan.
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