The following are the dosage of medicine and blood AZTconcentrationlevels of 32
ID: 2950932 • Letter: T
Question
The following are the dosage of medicine and blood AZTconcentrationlevels of 32 healthy adult males.
AZT
AZT
Dosage
concentration
Dosage
concentration
2.5
832
2.0
77l
2.5
672
1.8
757
2.5
904
0.9
213
2.5
554
0.6
394
2.5
996
0.9
391
1.9
878
1.3
430
2.1
815
1.1
440
1.9
805
1.4
352
1.9
592
1.1
337
0.9
391
0.8
181
1.5
710
0.7
174
1.4
591
1.0
470
1.4
660
1.1
426
1.5
694
0.8
170
1.8
668
1.0
360
1.8
601
0.9
320
1. Describe the above variablesusing both numerical and graphical methods.
2. Make a stem and leaf displayfor each variable and use it to describe the each variable’sdistribution.
3. Use z-scores to determine ifthe minimum and maximum values of the variable AZTconcentration are outliers.
4. Make a scatter plot of the twovariables. Use the scatter plot to describe the form of therelationship (if any) between the two variables.
5. Predict theAZT concentration level of a healthy adult male who received amedicine dosage = 2.2. How accurate is your prediction?
6. Find the correlationcoefficient between the dosage of medicine and blood AZTconcentration level.
7. Construct the 95% confidence interval for the mean of blood AZT concentrationlevel.
8. Is there enough evidence at thea = 0.5 significance level that the mean of blood ZT isgreater than 450?
AZT
AZT
Dosage
concentration
Dosage
concentration
2.5
832
2.0
77l
2.5
672
1.8
757
2.5
904
0.9
213
2.5
554
0.6
394
2.5
996
0.9
391
1.9
878
1.3
430
2.1
815
1.1
440
1.9
805
1.4
352
1.9
592
1.1
337
0.9
391
0.8
181
1.5
710
0.7
174
1.4
591
1.0
470
1.4
660
1.1
426
1.5
694
0.8
170
1.8
668
1.0
360
1.8
601
0.9
320
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