The systolic blood pressure of individuals is thought to be related to both age and weight. Let the systolic blood pressure, age, and weight be represented by the variables x_{1}, x_{2}, and x_{3}, respectively. Suppose that Minitab was used to generate the following descriptive statistics, correlations, and regression analysis for a random sample of 15 individuals.
Descriptive Statistics 

Variable 
N 
Mean 
Median 
TrMean 
StDev 
SE Mean 
x_{1} 
15 
158.42 
158.72 
158.42 
3.127 
0.807388 
x_{2} 
15 
65.95 
66.45 
65.95 
1.091 
0.281695 
x_{3} 
15 
187.23 
186.63 
187.23 
4.171 
1.076948 
Variable 
Minimum 
Maximum 
Q1 
Q3 
x_{1} 
124 
174 
135.828 
166.400 
x_{2} 
41 
80 
47.088 
77.579 
x_{3} 
124 
244 
142.885 
223.525 
Correlations (Pearson) 


x_{1} 
x_{2} 
x_{2} 
0.829 

x_{3} 
0.860 
0.661 
Regression Analysis
The regression equation is
x_{1} = 0.837 + 1.120x_{2} + 0.928x_{3 }
Predictor 
Coef 
StDev 
T 
P 
Constant 
0.837 
0.737 
1.14 
0.139 
x_{2} 
1.120 
0.589 
1.90 
0.041 
x_{3} 
0.928 
0.716 
1.30 
0.110 
S = 0.221 
Rsq = 90.3 % 
Rsq(adj) = 95.1 % 


Given the correlation coefficient for all pairs, which pair shows the strongest influence?
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 120 and standard deviation of 25 .
Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.
a. Around what percentage of adults in the USA have stage 2 high blood pressure?
b. If you sampled 4500 people, how many would you expect to have BP> 160? Give your answer to the nearest person.
people
c. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1?
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 118 and standard deviation of 22 .
Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.
a. Around what percentage of adults in the USA have stage 2 high blood pressure?
b. If you sampled 2500 people, how many would you expect to have BP> 160? Give your answer to the nearest person.
people
c. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1?
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 119 and standard deviation of 21 .
Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.
a. Around what percentage of adults in the USA have stage 2 high blood pressure?
b. If you sampled 4500 people, how many would you expect to have BP> 160? Give your answer to the nearest person.
people
c. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1?
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 120 and standard deviation of 17 .
Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.
a. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places.
%
b. If you sampled 2000 people, how many would you expect to have BP> 160? Give your answer to the nearest person. Note: I had a bit of an issue encoding rounded answers, so try rounding both up and down if there’s an issue!
people
c. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1?
%
d. Your doctor tells you you are in the 30th percentile for blood pressure among US adults. What is your systolic BP? Round to 2 decimal places.
lbs
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 118 and standard deviation of 19 .
Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.
a. Around what percentage of adults in the USA have stage 2 high blood pressure?
b. If you sampled 1000 people, how many would you expect to have BP> 160? Give your answer to the nearest person.
people
c. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1?
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 120 and standard deviation of 24 .
Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.
a. Around what percentage of adults in the USA have stage 2 high blood pressure?
b. If you sampled 2000 people, how many would you expect to have BP> 160? Give your answer to the nearest person.
people
c. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1?
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 122 and standard deviation of 17 .
Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.
a. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places. ______%
b. If you sampled 2000 people, how many would you expect to have BP> 160? Give your answer to the nearest person. Note: I had a bit of an issue encoding rounded answers, so try rounding both up and down if there’s an issue! ________people
c. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1? ________%
d. Your doctor tells you you are in the 30th percentile for blood pressure among US adults. What is your systolic BP? Round to 2 decimal places. ___________lbs
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 120 and standard deviation of 17 .
Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.
a. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places.
%
b. If you sampled 2000 people, how many would you expect to have BP> 160? Give your answer to the nearest person. Note: I had a bit of an issue encoding rounded answers, so try rounding both up and down if there’s an issue!
people
c. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1?
%
d. Your doctor tells you you are in the 30th percentile for blood pressure among US adults. What is your systolic BP? Round to 2 decimal places.
lbs
Thank you.
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 121 and standard deviation of 22 .
Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.
Express your answers as a decimal and round to 2 decimal places.
a. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places.
___%
b. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1?
______%
The systolic blood pressure of individuals is thought to be related to both age and weight. Let the systolic blood pressure, age, and weight be represented by the variables x_{1}, x_{2}, and x_{3}, respectively. Suppose that Minitab was used to generate the following descriptive statistics, correlations, and regression analysis for a random sample of 15 individuals.
Descriptive Statistics  
Variable  N  Mean  Median  TrMean  StDev  SE Mean 
x_{1}  15  157.63  157.73  157.63  3.456  0.892335 
x_{2}  15  62.26  62.76  62.26  1.356  0.350118 
x_{3}  15  167.50  166.50  167.50  4.055  1.046996 
Variable  Minimum  Maximum  Q1  Q3 
x_{1}  123  179  139.036  166.522 
x_{2}  42  87  47.988  77.501 
x_{3}  121  237  143.387  222.976 
Correlations (Pearson)  
x_{1}  x_{2}  
x_{2}  0.863  
x_{3}  0.828  0.641 
Regression Analysis
The regression equation is
x_{1} = 0.858 + 0.812x_{2} + 0.528x_{3 }
Predictor  Coef  StDev  T  P 
Constant  0.858  0.723  1.19  0.129 
x_{2}  0.812  0.759  1.07  0.153 
x_{3}  0.528  0.464  1.14  0.139 
S = 0.132  Rsq = 96.1 %  Rsq(adj) = 96.6 % 
Suppose a person’s age is 55 and weight is 192. Predict his or her systolic blood pressure. Round your answer to one decimal place.
answer choices:
130.7
146.9
170.4
203.6
157.6
The systolic blood pressure of individuals is thought to be related to both age and weight. Let the systolic blood pressure, age, and weight be represented by the variables x_{1}, x_{2}, and x_{3}, respectively. Suppose that Minitab was used to generate the following descriptive statistics, correlations, and regression analysis for a random sample of 15 individuals.
Descriptive Statistics  
Variable  N  Mean  Median  TrMean  StDev  SE Mean 
x_{1}  15  158.78  159.68  158.78  3.459  0.893110 
x_{2}  15  56.85  57.85  56.85  1.445  0.373097 
x_{3}  15  176.84  176.04  176.84  4.018  1.037443 
Variable  Minimum  Maximum  Q1  Q3 
x_{1}  126  170  136.347  167.113 
x_{2}  43  81  47.839  77.990 
x_{3}  120  234  141.672  224.477 
Correlations (Pearson)  
x_{1}  x_{2}  
x_{2}  0.889  
x_{3}  0.850  0.639 
Regression Analysis
The regression equation is
x_{1} = 0.808 + 1.262x_{2} + 0.815x_{3 }
Predictor  Coef  StDev  T  P 
Constant  0.808  0.494  1.64  0.064 
x_{2}  1.262  0.617  2.05  0.032 
x_{3}  0.815  0.753  1.08  0.150 
S = 0.470  Rsq = 91.1 %  Rsq(adj) = 93.1 % 
What percentage of variation in x1 can be explained by the corresponding variation in x2? Round your answer to the nearest tenth.
answer choices:
91.1%
93.1%
8.9%
72.3%
79.0%
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 117 and standard deviation of 26 .
Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.
(a) Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places.
b) Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1? Give your answer rounded to two decimal places.
(c). Your doctor tells you you are in the 30th percentile (e.g. bottom 30%) for blood pressure among US adults. What is your systolic BP? Give your answer rounded to two decimal place
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 117 and a standard deviation of 21.
Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.
a. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places.
b. If you sampled 2000 people, how many would you expect to have BP> 160? Give your answer to the nearest person. Note: I had a bit of an issue encoding rounded answers, so try rounding both up and down if there’s an issue
c. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1?
d. Your doctor tells you you are in the 30th percentile for blood pressure among US adults. What is your systolic BP? Round to 2 decimal places.
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 117 and standard deviation of 26 .
Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.
a. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places.
%
b. If you sampled 2000 people, how many would you expect to have BP> 160? Give your answer to the nearest person. Note: I had a bit of an issue encoding rounded answers, so try rounding both up and down if there’s an issue!
people
c. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1?
%
d. Your doctor tells you you are in the 30th percentile for blood pressure among US adults. What is your systolic BP? Round to 2 decimal places.
lbs
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 121 and standard deviation of 18 .
Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.
Express your answers as a decimal and round to 2 decimal places.
a. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places.
Is it correct answer 1.51%?
b. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1?
Is it correct answer 13.04?
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