Question

Automobile manufacturers have to design the driver’s seat area so that both tall and short adults can sit comfortably, reach all the controls and pedals, and see through the windshield. Suppose a new car is designed so that these conditions are met for people from 58 inches to 76 inches tall.

The heights of adult men in the United States are approximately normally distributed with a mean of 70 inches and a standard deviation of 3 inches.

You can conclude that this design will work for about what % of men?


95%


97.5%


90%


92.5%

Answer 1

my Older bro say it is c

Answer 2

thnks man can i ask another 1

Answer 3

is it right

Answer 4

ok

Answer 5

A grocery store chain has been tracking data on the number of shoppers that use coupons. The data shows that 71% of all shoppers use coupons. 18 times out of 20 these results were considered accurate to within 2.5%.

What is the confidence level?
99%


90%


80%


95%

Answer 6

he think it is d

Answer 7

95

Answer 8

%

Answer 9

thnxs bro

Answer 10

another 3 more i promise then i owe u

Answer 11

A sample of 100 cans of peas showed an average weight of 14 ounces with a standard deviation of 0.7 ounces. If the distribution is normal, how many cans of peas will fall between 12.6 and 15.4 ounces?

100


90


95


99

Answer 12

he thinks it is A 100

Answer 13

r u sure man

Answer 14

that is what he said and he is in college

Answer 15

oh ok

Answer 16

is it right

Answer 17

Suppose a random sample of 84 men has a mean foot length of 26.9 cm with a standard deviation of 2.1 cm. What is an 80% confidence interval for this data?

24.8 to 29


21.52 to 32.28


28.58 to 25.22


24.21 to 29.59

Answer 18

um umm

Answer 19

he said B

Answer 20

Suppose a random sample of 84 men has a mean foot length of 26.9 cm with a standard deviation of 2.1 cm. What is an 80% confidence interval for this data?

24.8 to 29


21.52 to 32.28


28.58 to 25.22


24.21 to 29.59

Answer 21

that is the same one

Answer 22

oh sorry man

Answer 23

its ok

Answer 24

:D

Answer 25

What allows us to apply normal calculations to non-normal distributions?
Stratified sample


Margins of error


Randomness


Central Limit Theorem

Answer 26

he said Margins of error

Answer 27

wait what grade r u im

Answer 28

ok now im just checkin to see if my answers right im taking a test online then it tell u what grade u get

Answer 29

...

Answer 30

senior high school

Answer 31

oh ok

Answer 32

Me too

Answer 33

The mean is a good measure of the center of this set of data: 11, 13, 15, 14, 17, 19, 46

t or f

Answer 34

and cool man

Answer 35

what is the grade

Answer 36

senior

Answer 37

no for the test

Answer 38

junior

Answer 39

what i ment was what did we get for the answers

Answer 40

oh right know im just checkin my answers now

Answer 41

The mean is a good measure of the center of this set of data: 11, 13, 15, 14, 17, 19, 46

t or f