Question 8(1 point)

Question 8 options:

To determine ifReikiis an effective method for treating pain, a pilot study was carried out where a certified second-degreeReikitherapist provided treatment on volunteers.Pain was measured using a visual analogue scale (VAS) immediately before and after theReikitreatment (Olson & Hanson, 1997) and the data is in following table:

Table: Pain Measurements Before and AfterReikiTreatment

VAS before

VAS after

VAS before

VAS after

6

3

5

1

2

1

1

0

2

0

6

4

9

1

6

1

3

0

4

4

3

2

4

1

4

1

7

6

5

2

2

1

2

2

4

3

3

0

8

8

a.Find themeanof the "VAS before" data sample(give answer to nearest hundredth)

b.Find themeanof the "VAS after" data sample(give answer to nearest hundredth)

c.Find thesample standard deviationof the "VAS before" data sample(give answer to nearest thousandth)

d.Find thesample standard deviationof the "VAS after" data sample(give answer to nearest thousandth)

e.Comparing the means and sample standard deviations of the "before" and "after" data samples,which of the following observations is TRUE?

(enter number of answer you choose)

1. mean VAS is lower after treatment and is more consistent after treatment (data spread is narrower than spread of "VAS before" data)
2. mean VAS is lower after treatment but is less consistent after treatment (data spread is broader than spread of "VAS before" data)
3. mean VAS is lower after treatment and its consistency is approximately the same after treatment as it is before treatment (data spread is essentially same as spread of "VAS before" data)
4. mean VAS is lower after treatment but there is insufficient information to compare spreads of "VAS before" data and "VAS after" data to each other

Question 9(1 point)

Question 9 options:

The median incomes of females in each state of the United States, including the District of Columbia and Puerto Rico, are given in following table ("Median income of," 2013).

$31,862

$40,550

$36,048

$30,752

$41,817

$40,236

$47,476

$40,500

$60,332

$33,823

$35,438

$37,242

$31,238

$39,150

$34,023

$33,745

$33,269

$32,684

$31,844

$34,599

$48,748

$46,185

$36,931

$40,416

$29,548

$33,865

$31,067

$33,424

$35,484

$41,021

$47,155

$32,316

$42,113

$33,459

$32,462

$35,746

$31,274

$36,027

$37,089

$22,117

$41,412

$31,330

$31,329

$33,184

$35,301

$32,843

$38,177

$40,969

$40,993

$29,688

$35,890

$34,381

Create an ogive using 7 classes and answer the following questions:

(i)Reading from the ogive chart you created, how many of the 52 states/districts/commonwealths have female median incomes of about $33,000 or less?

A.20

B.36

C.10

D.15

Enter letter associated with the answer you choose

(ii)Reading from the ogive chart you created, roughly how many of the 52 states/districts/commonwealths have female median incomes of about $37,500 or less?

A.20

B.36

C.30

D.15

Enter letter associated with the answer you choose

(iii)Reading from the ogive chart you created, roughly how many of the 52 states/districts/commonwealths have female median incomes of about $55,000 or less?

A.45

B.51

C.50

D.1

Enter letter associated with the answer you choose

(iv)Reading from the ogive chart you created, roughly how many of the 52 states/districts/commonwealths have female median incomes of about $30,000 or less?

A.8

B.10

C.1

D.15

Enter letter associated with the answer you choose