A sample of blood pressure measurements is taken from a data set and those values? (mm...

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A sample of blood pressure measurements is taken from a data setand those values? (mm Hg) are listed below. The values are matchedso that subjects each have systolic and diastolic measurements.Find the mean and median for each of the two samples and thencompare the two sets of results. Are the measures of center thebest statistics to use with these? data? What else might be?better?

Systolic   Diastolic
154 53
118 51
149 77
120 87
159 74
143 57
152 65
132 78
95 79
123 80

Find the means.
The mean for systolic is__ mm Hg and the mean for diastolic is__ mmHg.
?(Type integers or decimals rounded to one decimal place as?needed.)

Find the medians.
The median for systolic is___ mm Hg and the median for diastolicis___mm Hg.
?(Type integers or decimals rounded to one decimal place as?needed.)

Compare the results. Choose the correct answer below.
A. The mean is lower for the diastolic? pressure, but the median islower for the systolic pressure.
B. The median is lower for the diastolic? pressure, but the mean islower for the systolic pressure.
C. The mean and the median for the systolic pressure are both lowerthan the mean and the median for the diastolic pressure.
D. The mean and the median for the diastolic pressure are bothlower than the mean and the median for the systolic pressure.
E. The mean and median appear to be roughly the same for both typesof blood pressure

Are the measures of center the best statistics to use withthese? data?
A. Since the systolic and diastolic blood pressures measuredifferent? characteristics, a comparison of the measures of center?doesn't make sense.
B. Since the sample sizes are? large, measures of the center wouldnot be a valid way to compare the data sets.
C. Since the sample sizes are? equal, measures of center are avalid way to compare the data sets.
D. Since the systolic and diastolic blood pressures measuredifferent? characteristics, only measures of the center should beused to compare the data sets.

What else might be? better?
A. Because the data are? matched, it would make more sense toinvestigate whether there is an association or correlation betweenthe two blood pressures.
B. Because the data are? matched, it would make more sense toinvestigate any outliers that do not fit the pattern of the otherobservations.
C. Since measures of center are? appropriate, there would not beany better statistic to use in comparing the data sets.
D. Since measures of the center would not be? appropriate, it wouldmake more sense to talk about the minimum and maximum values foreach data set.

Answer & Explanation Solved by verified expert
4.3 Ratings (644 Votes)
Mean is given bySystolicDialostic1545311851149771208715974143571526513278957912380sum1345701mean sum101345701Mean for systolic 1345Mean for dialostic    See Answer
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