Q7. The published figure for the median systolic blood pressure of middle-aged men is 128. To determine if there has been any change in this value, a random sample of 100 men has been selected. Test...
A random sample of size 13 is selected from men with hypertension. For each person, systolic blood pressure was measured right before and one hour after taking the medicine. The mean reduction of the blood pressures was 10.1 and the standard deviation of the difference was 11.2. In testing if there is sufficient evidence to conclude that the hypertension medicine lowered blood pressure, what is the p-value (round off to fourth decimal place)? Assume normal population. 1 pts Question 4...
Assume that a simple random sample has been selected and test the given claim. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. Listed below are brain volumes in cm of unrelated subjects used in a study. Use a 0.05 significance level to test the claim that the population of brain volumes has a mean equal to 1099.4 cm. 964 1026 1272 1078 1071 1173 1067 1348 1101 1203 VIAL...