Answer:
There is sufficient evidence to support the claim that the standard deviation is less than 14.7.
Step-by-step explanation:
From the question we are told that that the null hypothesis is

Now given from the question that this null hypothesis was rejected, it mean, in non technical term that there is sufficient evidence to support the claim that the standard deviation is less than 14.7.
53 miles per hour because 265 divided 5 is 53.
Answer:
101 meter
Step-by-step explanation:
I think
Answer:
y=5x + 21
Step-by-step explanation:
y=5x×b
6= -15+b
b=21