Question

I need help with one problem from my statistic homework! please help :)

Answer 1

how do i set up this equation

Answer 2

is it 110-100/5 and 110-106/1

Answer 3

Z-SCORE = (VALUE - MEAN)/(STANDARD DEVIATION)

Answer 4

is it -2 and -4?

Answer 5

No, these z- values are going to be positive. Use the formula.

Answer 6

so what i had before was write. 110-100/5= 2 and 110-106/1=4

Answer 7

is is asking for the z-score of the unusual speed? how do i know which one is unusual?

Answer 8

The one with the largest absolute value of the z-score is the one having the most number of standard deviations from the mean and is thus the most unusual.

Answer 9

so 4 is the unusual z-score?
right?

Answer 10

Yes. Good. Values 4 standard deviations above the mean occur by chance less than 1/ 10,000.

Answer 11

thank you so much :)

Answer 12

You are very welcome. Regards.