Question

A spa owner gives a survey to all of her customers asking them to rate the quality of the service they received. She then keeps track of how many customers return to the spa for additional services during the next six months. Last year, the results showed that of the customers who reported high quality service, 15% returned for additional services. What conclusion can be drawn from this study?

Answer 1

High quality services cause customers to return for additional services.

Customers who will return for additional services report a high quality of service.

Some customers who rate their service as high quality return for additional services.

Most customers who rate their service as high quality return for additional services.

Answer 2

I give medals

Answer 3

@phi

Answer 4

@satellite73

Answer 5

@skullpatrol

Answer 6

@Preetha

Answer 7

@ganeshie8

Answer 8

@Preetha

Answer 9

@PeterPan

Answer 10

@precal

Answer 11

@PeterPan

Answer 12

is this stats? I don't do stats problems sorry

Answer 13

naw this is alg 2

Answer 14

@phi

Answer 15

@phi

Answer 16

@phi

Answer 17

third one

Answer 18

i kind off wanted an explantion

Answer 19

of*

Answer 20

you should start by ruling out the obviously incorrect choices.

customers who reported high quality service, 15% returned

that means some customers reported high quality (we don't know how many or what percent)
of these, 15% returned.

that means a small number returned.

Answer 21

yes but it could be the 2nd one?

Answer 22

First choice
High quality services cause customers to return for additional services.

this seems wrong. 1) 15% returning is not a very big number...

Answer 23

i figured that part out

Answer 24

I will let phi explain

Answer 25

im deciding between the 2nd and 3rd one

Answer 26

Customers who will return for additional services report a high quality of service.

1) we don't know this.
2) 85% of the people who returned did *not* originally rate the store high quality. There is no reason to think they will after they return.

Answer 27

Some customers who rate their service as high quality return for additional services.

this is true. 15% qualifies as "some"

Answer 28

yes we do because it says "of the customers who rated the service as high quality:"

Answer 29

Most customers who rate their service as high quality return for additional services.

clearly false. only 15% return and that is not most.

Answer 30

well i was already leaning towards that response but could u help with another one

Answer 31

the 3rd one ,not the stupid one

Answer 32

Carter wants to know if warming up will help runners sprint faster. Thirty track and field athletes volunteered to participate in his study. He randomly assigns 15 athletes to warm-up for 10 minutes. All 30 participants sprint the same distance. She calculates the mean for each group and determines that the mean for the warm-up group was 10.7 seconds and the mean for the other group was 13.2 seconds. To test the difference of means, he re-randomized the data 54 times and the differences are plotted in the dot plot below. What can Carter conclude from his study?

Answer 33

The difference in the means is significant because a difference of 2.5 is very likely.

The difference in the means is not significant because a difference of 2.5 is very likely.

The difference in the means is significant because a difference of 2.5 is not very likely.

The difference in the means is not significant because a difference of 2.5 is not very likely.

Answer 34

im still here mate

Answer 35

I think we need to look at the plot

Answer 36

what plot?

Answer 37

it says
***and the differences are plotted in the dot plot below. ****