0.05 significance level, is there sufficient evidence to support the claim that the drug is effective in lowering systolic blood pressure? Before After 167 171 195 176 183 175 162 162 149 189 155 205 143 210 179 155 156 164 148 179 147 188 179 144 In this example, Ha is the mean value of the differences d for the population of all pairs of data, where each individual diffrence d is defined as the systolic blood pressure reading before the drug was taken minus the reading after the drug was taken. What are the null and alternative hypotheses for the hypothesis test? OA. Hạ: 0 OB. Ho: 0 OD. He: 0 OC. Ho: H =0 H: H >0 Identify the test statistic. t=O (Round to two decimal places as needed.) Identify the P-value. Pvalue (Round to three decimal places as needed.) Since the P-value is V than the significance level. Ho. There is V evidence to support the claim that the drug is effective in lowering systolic blood pressure. fail to reject reject

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Author:Amos Gilat
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Chapter1: Starting With Matlab
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When subjects were treated with a drug, their systolic blood pressure readings (in mm Hg) were measured before and after the drug was taken. Results are given in the table below. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Using a
0.05 significance level, is there sufficient evidence to support the claim that the drug is effective in lowering systolic blood pressure?
Before
167
195
183
175
162
189
205
210
155
156
164
179
188
After
171
176
144
162
149
155
143
179
148
147
179
In this example, Ha is the mean value of the differences d for the population of all pairs of data, where each individual differenced is defined as the systolic blood pressure reading before the drug was taken minus the reading after the drug was taken. What are the null and alternative hypotheses for the hypothesis test?
O B. Ho: Ha +0
O A. Ho: Ha #0
H1: Ha = 0
H1: Ha >0
OC. Ho: Ha = 0
H1: Ha >0
O D. Ho: Ha = 0
H1: Ha <0
Identify the test statistic.
t= (Round to two decimal places as needed.)
Identify the P-value.
P-value = (Round to three decimal places as needed.)
Since the P-value is
v than the significance level,
Ho. There is
evidence to support the claim that the drug is effective in lowering systolic blood pressure.
fail to reject
reject
Transcribed Image Text:When subjects were treated with a drug, their systolic blood pressure readings (in mm Hg) were measured before and after the drug was taken. Results are given in the table below. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Using a 0.05 significance level, is there sufficient evidence to support the claim that the drug is effective in lowering systolic blood pressure? Before 167 195 183 175 162 189 205 210 155 156 164 179 188 After 171 176 144 162 149 155 143 179 148 147 179 In this example, Ha is the mean value of the differences d for the population of all pairs of data, where each individual differenced is defined as the systolic blood pressure reading before the drug was taken minus the reading after the drug was taken. What are the null and alternative hypotheses for the hypothesis test? O B. Ho: Ha +0 O A. Ho: Ha #0 H1: Ha = 0 H1: Ha >0 OC. Ho: Ha = 0 H1: Ha >0 O D. Ho: Ha = 0 H1: Ha <0 Identify the test statistic. t= (Round to two decimal places as needed.) Identify the P-value. P-value = (Round to three decimal places as needed.) Since the P-value is v than the significance level, Ho. There is evidence to support the claim that the drug is effective in lowering systolic blood pressure. fail to reject reject
Before
195
176
162
189
143
210
155
After
144
179
Transcribed Image Text:Before 195 176 162 189 143 210 155 After 144 179
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