Do high school students from different racial/ethnic groups have different attitudes toward mathematics? Measure the level of interest in mathematics on a five-point scale for a national random sample of students. Here are summaries for students who were taking math at the time of the survey. Racial/Ethnic group n x s
African American 801 2.57 1.45
White 1867 2.28 1.32
Asian/Pacific Islander 653 2.63 1.29
Hispanic 878 2.45 1.29
Native American 204 2.51 1.25
(a) Calculate the ANOVA table and the F statistic. (Round your answers for SS, MS, and F to two decimal places.)
SOURCE DF SS MS F
Groups
Error
Total
(b) Software gives
P < 0.001.
What explains the small P-value?
The standard deviations are very similar.
There are several groups being compared.
The mean responses are very similar.
The sample sizes are very large.
Do you think the differences are large enough to be important?

answer:

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

explanation:

service only with 20% tip  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the  

service

−−−−−−  

so technically the answer is  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

however, the intention of the question provider may have been that your answer is to be  

$

87.12

(

1

+

8

100

)

=

$

94.09

to 2 decimal places.

'

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge  

.

→

$

72.60

20% tip  

20

100

×

$

72.60

=

$

14.52

−−−−−−  

←

add

$

87.12

tax  

8

100

×

$

87.12

=

$

6.97

−−−−−  

←

add

$

94.09

related questions

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!