3.2 . I don't really know how to explain this, but I need to write at least 20 characters to give you my answer.
Answer:
a
Step-by-step explanation:
math
Answer:
Test statistic = 2
P-value = 0.0227
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = $98
Sample mean,
= $100
Sample size, n = 100
Population standard deviation, σ = $10
First, we design the null and the alternate hypothesis
Formula:
Putting all the values, we have
Now, we can calculate the p-value from the normal table
P-value = 0.0227
Answer:
If she walks at 2/hour and he walks at 3/hour, this means they cover a combined 5 miles of distance per hour. Since they are 90 miles apart, this implies that it'll take a combined 18 hours for them to meet.
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