1. A survey of National Capital Region finds the average commute time of employees on one way is 30 minutes. The Makati Chamber of Commerce feels that in their city is greater and wants to publicizethis. They randomly select 28 commuters and finds the average is 35 minutes with a standard deviation of 6 minutes. At a = 0.05, are they соггеct?

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1. A survey of National Capital Region finds the average commute time of employees on
one way is 30 minutes. The Makati Chamber of Commerce feels that in their city is
greater and wants to publicizethis. They randomly select 28 commuters and finds the
average is 35 minutes with a standard deviation of 6 minutes. At a = 0.05, are they
correct?
Solution:
Step 1: State the hypotheses.
Ho:.
H:
Step 2: The level of significance and critical region. a =
df =
and tatical =
Step 3: Compute for the value of one sample t test. tomputnd
%3D
Step 4: Decision rule.
Step 5: Conclusion.
Transcribed Image Text:1. A survey of National Capital Region finds the average commute time of employees on one way is 30 minutes. The Makati Chamber of Commerce feels that in their city is greater and wants to publicizethis. They randomly select 28 commuters and finds the average is 35 minutes with a standard deviation of 6 minutes. At a = 0.05, are they correct? Solution: Step 1: State the hypotheses. Ho:. H: Step 2: The level of significance and critical region. a = df = and tatical = Step 3: Compute for the value of one sample t test. tomputnd %3D Step 4: Decision rule. Step 5: Conclusion.
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