A large research hospital and a community hospital are located in your area

1. A large research hospital and a community hospital are located in your area. The surgery cases, even of the same type, are not equally serious. Large research hospitals tend to get the most serious surgery cases, whereas community hospitals tend to get more of the routine cases. Suppose that patients can be classified as being in either “Good” or “Poor” condition and the outcomes of surgery are as shown in table below.
Survival Rates by Condition
Good Condition Poor Condition
Died Survived Total Died Survived Total
Research hospital 12 688 700 Research hospital 69 1431 1500
Community hospital 16 584 600 Community hospital 7 93 100
Total 28 1272 1300 Total 76 1524 1600

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Round the answers to three decimal places.
For Good Condition, calculate the proportions that survived and were in research hospital. (Points : 1)
.017
.981
.983
.973
Question 2. 2. A large research hospital and a community hospital are located in your area. The surgery cases, even of the same type, are not equally serious. Large research hospitals tend to get the most serious surgery cases, whereas community hospitals tend to get more of the routine cases. Suppose that patients can be classified as being in either “Good” or “Poor” condition and the outcomes of surgery are as shown in table below.
Survival Rates by Condition
Good Condition Poor Condition
Died Survived Total Died Survived Total
Research hospital 12 688 700 Research hospital 70 1430 1500
Community hospital 17 583 600 Community hospital 7 93 100
Total 29 1271 1300 Total 77 1523 1600

Round the answers to three decimal places.
For Good Condition, calculate the proportions that died and were in research hospital. (Points : 1)
.017
.972
.047
.983

Question 3. 3. A large research hospital and a community hospital are located in your area. The surgery cases, even of the same type, are not equally serious. Large research hospitals tend to get the most serious surgery cases, whereas community hospitals tend to get more of the routine cases. Suppose that patients can be classified as being in either “Good” or “Poor” condition and the outcomes of surgery are as shown in table below.
Survival Rates by Condition
Good Condition Poor Condition
Died Survived Total Died Survived Total
Research hospital 12 688 700 Research hospital 69 1431 1500
Community hospital 16 584 600 Community hospital 7 93 100
Total 28 1272 1300 Total 76 1524 1600

Round the answers to three decimal places.

For Poor Condition, calculate the proportions that survived and were in community hospital. (Points : 1)
.954
.981
.046
.930

Question 4. 4. A large research hospital and a community hospital are located in your area. The surgery cases, even of the same type, are not equally serious. Large research hospitals tend to get the most serious surgery cases, whereas community hospitals tend to get more of the routine cases. Suppose that patients can be classified as being in either “Good” or “Poor” condition and the outcomes of surgery are as shown in table below.
Survival Rates by Condition
Good Condition Poor Condition
Died Survived Total Died Survived Total
Research hospital 13 687 700 Research hospital 73 1427 1500
Community hospital 19 581 600 Community hospital 7 93 100
Total 32 1268 1300 Total 80 1520 1600

. Round the answers to three decimal places.
For Poor Condition, calculate the proportions that died and were in community hospital. (Points : 1)
.951
.981
.070
.930

Question 5. 5. Calculations from a data set of n = 32 pairs of (x,y) values have provided the following results:

Obtain the correlation coefficient. Round your answer to three decimal places. (Points : 1)

r = -0.597
r = -0.632
r = 0.597
r = 0.632
Question 6. 6. Heating and combustion analyses were performed in order to study the composition of moon rocks. Recorded here are the determinations of hydrogen (H) and carbon (C) in parts per million (ppm) for 11 specimens.
Hydrogen (ppm) 120 90 90 8 38 20 2.8 66 2.0 20 85
Carbon (ppm) 105 110 99 22 50 40 7.3 74 7.7 45 51

Calculate r. Round your answer to three decimal places. (Points: 1)
r = 0.915
r = .528
r = -.915
r = -.528

Question 7. 7. A store manager has determined that the monthly profit y realized from selling a particular brand of car battery is given by
y = 11x − 155
where x denotes the number of these batteries sold in a month.
If 47 batteries were sold in a month, what was the profit? (Points: 1)
y = 402
y = 362
y = 451
y = 744
Question 8. 8. A store manager has determined that the monthly profit y realized from selling a particular brand of car battery is given by
y = 8x − 155
where x denotes the number of these batteries sold in a month.
At least how many batteries must be sold in a month in order to make a profit? (Give a whole number.) (Points : 1)
x =14
x =16
x =18
x = 20
Question 9. 9. In an experiment to study the relation between the time waiting in line, y
(minutes), to get to the head of the checkout line at her favorite grocery store and the number of persons ahead in line, x, a student collected the following statistics:
n = 9 ,
, Sxx = 9.4 , Syy = 17.8 , Sxy = 11.7
Find the equation of the least squares fitted line.
Round your answers to two decimal places.

Depict your answer in the form: (Points : 1)
y = -1.81+1.24*x
y =1.81+1.24*x
y = 2.01+1.24*x
y = 2.01-1.24*x

Question 10. 10. Given the five pairs of (x, y) values,
x 0 2 4 6 8
y 5 4 5 6 7

Calculate the following least squares estimates. Carry out all calculations exactly and round to 3 decimal places the final answers only. (Points : 1)