A signalized intersection has a cycle length of 60 seconds and an effective red time of 25 seconds. The effective green time is
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<u>Missing part of question</u>
Formulate hypotheses that can be used to determine whether the population mean annual administrator salary in Ohio differs from the national mean of $90,000.
Answer:
Step-by-step explanation:
Given
-- sample size
--- mean
Required
Formulate a hypothesis
First, the mean annual salary is: $90,000
This represents the null hypothesis
So:
To determine if the mean differs implies that
This represents the alternate hypothesis
So:
So, the null and alternate hypotheses are: