please help i need to put the things on the right inside the boxes please help ik this app is like dead and people just farm but
plz help im putting 70 on this :(
1 answer:
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Answer:
and
The null hypothesis is not rejected
Step-by-step explanation:
Given
Random sample of 50 commuter times
Solving (a): The null and alternate hypothesis
From the question, a previous census shows that:
and
This is the null hypothesis i.e.
Reading further, a new test was to show whether the average has decreased.
This is the alternate hypothesis, and it is represented as:
Solving (b) and (c): The test statistic (T).
This is calculated using:
In this case:
and
So:
Solving (c): Accept or reject null hypothesis
First calculate the degrees of freedom (df)
From the t distribution table,
At: ,
and
the t score is:
<em>So, the null hypothesis is not rejected</em>