Solution: Step 1: State the hypotheses. Step 2:The level of significance and the critical region. =_df = _and Step 3: Compute the value of z test.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 19HP
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3. The economist wants to compare the hourly rates charged by automobile mechanics in
two major cities in Metro Manila. He randomly selects auto repair facilitiesfrom both
cities and records their hourly rates (in pesos). The data is as follows:
City of Manila
190
140 130 212
168
160
135
205
180
| Quezon City
| 179
150
120 156 175
180
200
Is there sufficient evidence to indicate the difference in the mean hourly rates from these
two cities, at?
Solution:
Step 1: State the hypotheses.
Step 2:The level of significance and the critical region. =
df =
and
Step 3: Compute the value of z test.
Transcribed Image Text:3. The economist wants to compare the hourly rates charged by automobile mechanics in two major cities in Metro Manila. He randomly selects auto repair facilitiesfrom both cities and records their hourly rates (in pesos). The data is as follows: City of Manila 190 140 130 212 168 160 135 205 180 | Quezon City | 179 150 120 156 175 180 200 Is there sufficient evidence to indicate the difference in the mean hourly rates from these two cities, at? Solution: Step 1: State the hypotheses. Step 2:The level of significance and the critical region. = df = and Step 3: Compute the value of z test.
tomputod =
Step 4: Decision rule.
Step 5: Conclusion.
Transcribed Image Text:tomputod = Step 4: Decision rule. Step 5: Conclusion.
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