lood pressure levels are normally distributed for the population of patients both before and after takiPatient47Blood pressure (before 195 185 179 195 184196 149 200 164Blood pressure (after) 178 66 160 171 170 182 143 175 156null and alternative hypotheses for the test.E Tables25

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Asked Apr 14, 2019
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A pharmcuticle company claims that its new drug reduces systolic  blood pressure. The systolic blood pressure (in millimeters of Mercury) for 9 patients before taking the new drug and 2 hours after taking the drug are shown in the table below. is there enough evidence support the company's claim?

Let D =(blood pressure before taking new drug)- (blood pressure after taking new drug).use significant levels of a=their  0.05 for the test. Assume that the systolic  blood pressure levels are normally distributed for the population of patience both Before & After taking the new drug.

1.State the null and alternative hypothesis for the test.

2. Find the value of the standard deviation of the paired differences. Round to one decimal place.

3.compute the value of the test statistic. Round to three decimal places

4.determine the decision rule for rejecting the null hypothesis Ho. Round the numerical portion to three decimals.

5.make decision for the hypothesis test.

lood pressure levels are normally distributed for the population of patients both before and after taki
Patient
4
7
Blood pressure (before 195 185 179 195 184196 149 200 164
Blood pressure (after) 178 66 160 171 170 182 143 175 156
null and alternative hypotheses for the test.
E Tables
25
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lood pressure levels are normally distributed for the population of patients both before and after taki Patient 4 7 Blood pressure (before 195 185 179 195 184196 149 200 164 Blood pressure (after) 178 66 160 171 170 182 143 175 156 null and alternative hypotheses for the test. E Tables 25

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Expert Answer

Step 1

Solution

Let D =(blood pressure before taking new drug)­ – (blood pressure after taking new drug) and α = 0.05 be the significance level.

Step 1:

The pharmaceutical company claims that its new drug reduces systolic  blood pressure.

The null and alternative hypotheses can be stated as follows:

H0 : µD ≤ 0 

H1 : µD > 0

Step 2

Step 2:

The standard deviation of the paired difference is obtained by

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Step 3

The computation of standard de...

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