Question

A group of five individuals with high blood pressure were given a new drug that was...

A group of five individuals with high blood pressure were given a new drug that was designed to lower blood pressure. Systolic blood pressure was measured before and after treatment for each individual, with the following results:

Subject

Before

After

1

174

145

2

164

132

3

168

129

4

158

135

5

183

145

Let μXμX represent the population mean before treatment and let μYμY  represent the population mean after treatment. Find a 90% confidence interval for the difference μD=μX−μY. Round the answers to three decimal places.

Find the following values.

χ212,.025χ12,.0252

Math   Statistics-And-Probability   
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