Question: question 35 The data show the distance (in miles) from an airport of a sample of 22 inbound and outbound airplanes. Use technology to answer
question 35
The data show the distance (in miles) from an airport of a sample of
22
inbound and outbound airplanes. Use technology to answer parts (a) and (b).
a. Find the data set's first, second, and third quartiles.
b. Draw a box-and-whisker plot that represents the data set.
| 4.3 | 3.5 | 3.4 | 3.6 | 3.6 | 4.5 | 4.1 | 3.1 | 4.6 | 4.6 | 5.5 |
| 5.1 | 3.3 | 5.9 | 3.3 | 3.2 | 5.1 | 1.8 | 4.7 | 4.9 | 3.2 | 5.6 |
a. Find the three quartiles.
| Q1 | = | |
| Q2 | = | |
| Q3 | = |
(Type integers or decimals. Do not round.)
b. what does the box and whisker plot look like
question 36
In a survey of
2747
adults,
1498
say they have started paying bills online in the last year.
Construct a 99% confidence interval for the population proportion. Interpret the results.
A 99% confidence interval for the population proportion is __,__
(Round to three decimal places as needed.)
Interpret your results. Choose the correct answer below.
A.
The endpoints of the given confidence interval show that adults pay bills online 99% of the time.
B.
With 99% confidence, it can be said that the population proportion of adults who say they have started paying bills online in the last year is between the endpoints of the given confidence interval.
C.
With 99% confidence, it can be said that the sample proportion of adults who say they have started paying bills online in the last year is between the endpoints of the given confidence interval.
question 37
Use the confidence interval to find the margin of error and the sample mean.
(0.686,0.790)
The margin of error is
The sample mean is
questioni 39
Determine whether to reject or fail to reject
H0
at the level of significance of a)
=0.07
and b)
=0.06.
H0:
=107,
Ha:
107,
and
P=0.0682.
a) Do you reject or fail to reject
H0
at the
0.07
level of significance?
A.
Reject
H0
because
P<0.07.
B.
Reject
H0
because
P>0.07.
C.
Failtoreject
H0
because
P<0.07.
D.
Failtoreject
H0
because
P>0.07.
b) Do you reject or fail to reject
H0
at the
0.06
level of significance?
A.
Reject
H0
because
P>0.06.
B.
Failtoreject
H0
because
P<0.06.
C.
Failtoreject
H0
because
P>0.06.
D.
Reject
H0
because
P<0.06.
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