Question

In: Statistics and Probability

Researcher recorded the following data to study the effects of age (x) on systolic blood pressure...

Researcher recorded the following data to study the effects of age (x) on systolic blood pressure (y) in men over the age of 50. Using the data below, calculate the 95% prediction interval for the systolic blood pressure of a 60-year old man. Estimated regression line is Y = 84.250 + 0.991x.

Age 67 54 78 66 80 57 59 71 60 62 53
Systolic BP (mmHg) 135 145 167 129 163 146 152 168 142 151 129

Solutions

Expert Solution


Related Solutions

A researcher studied age and systolic blood pressure of 6 randomly selected subjects. The data are...
A researcher studied age and systolic blood pressure of 6 randomly selected subjects. The data are shown in the table. Subject /Age /Pressure A 43 120 B 48 128 C 56 135 D 61 141 E 67 143 F 70 152 Test the significance of the correlation between age and systolic blood pressure. Use a significance level of 0.05. Step1) Identify the null and alternative hypotheses symbolically. H0: H1: Step 2) Find the p – value and make the decision...
1. The following table gives the systolic blood pressure and age of patients. Systolic Blood Pressure...
1. The following table gives the systolic blood pressure and age of patients. Systolic Blood Pressure Age 131 34 132 36 122 30 119 32 123 26 115 23 137 37 a) Determine an r value for this data and classify the value as weak, moderate, or strong. b) Based on your calculated r value, what can you say about the slope of the regression line? c) Determine the model equation. This is also called the regression line or the...
A medical researcher is investigating the effect of drinking coffee on systolic blood pressure. The researcher...
A medical researcher is investigating the effect of drinking coffee on systolic blood pressure. The researcher assumes the average systolic blood pressure is 120 mmHg. For a random sample of 200 patients, the researcher takes two measurements of systolic blood pressure. The first systolic blood pressure measurement is taken during a week when the patients drink no coffee, and the second systolic blood pressure measurement is taken during a week when the patients drink at least two cups of coffee....
The systolic blood pressure of individuals is thought to be related to both age and weight....
The systolic blood pressure of individuals is thought to be related to both age and weight. For a random sample of 11 men, the following data were obtained. Systolic Blood pressue x1 Age (years) x2 Weight (pounds) x3 132 52 173 143 59 184 153 67 194 162 73 211 154 64 196 168 74 220 137 54 188 149 61 188 159 65 207 128 46 167 166 72 217 (a) Generate summary statistics, including the mean and standard...
The systolic blood pressure of individuals is thought to be related to both age and weight....
The systolic blood pressure of individuals is thought to be related to both age and weight. For a random sample of 11 men, the following data were obtained. Systolic Blood pressue x1 Age (years) x2 Weight (pounds) x3 132 52 173 143 59 184 153 67 194 162 73 211 154 64 196 168 74 220 137 54 188 149 61 188 159 65 207 128 46 167 166 72 217 (a) Generate summary statistics, including the mean and standard...
The systolic blood pressure of individuals is thought to be related to both age and weight....
The systolic blood pressure of individuals is thought to be related to both age and weight. For a random sample of 11 men, the following data were obtained. Systolic Blood pressue x1 Age (years) x2 Weight (pounds) x3 132 52 173 143 59 184 153 67 194 162 73 211 154 64 196 168 74 220 137 54 188 149 61 188 159 65 207 128 46 167 166 72 217 (a) Generate summary statistics, including the mean and standard...
We have age and systolic blood pressure (SBP) of 10 randomly chosen people. Using this data,...
We have age and systolic blood pressure (SBP) of 10 randomly chosen people. Using this data, we would like to create a model to predict systolic blood pressure from age. Age SBP 53 137 50 132 54 149 48 132 43 120 43 126 63 161 63 170 62 152 65 164 Write out the model with the beta coefficients. (6pts) Put this data into SPSS, and find the parameter estimates. Write out the prediction equation. Interpret the prediction equation....
We have age and systolic blood pressure (SBP) of 10 randomly chosen people. Using this data,...
We have age and systolic blood pressure (SBP) of 10 randomly chosen people. Using this data, we would like to create a model to predict systolic blood pressure from age. Age SBP 53 137 50 132 54 149 48 132 43 120 43 126 63 161 63 170 62 152 65 164 Give a 95% CI around the predicted slope coefficient and interpret. Using the prediction equation, what is the predicted systolic blood pressure for a 44 year old? 61...
A researcher conducted a study to whether age, gender, obesity, high blood pressure and regular physical...
A researcher conducted a study to whether age, gender, obesity, high blood pressure and regular physical activity is associated with the risk of recurrent MI (measured as serum cholesterol level) in post MI patients. A sample of 60 people was obtained from the community. All subjects had their serum cholesterol level drawn. Research question: Do age, gender, obesity, high blood pressure and regular physical activity predict the serum cholesterol level? Please indicate which statistical test should be used. a.   Independent...
A medical researcher is studying the effects of a drug on blood pressure. Subjects in the...
A medical researcher is studying the effects of a drug on blood pressure. Subjects in the study have their blood pressure taken at the beginning of the study. After being on the medication for 4 weeks, their blood pressure is taken again. The change in blood pressure is recorded and used in doing the hypothesis test. Change: Final Blood Pressure - Initial Blood Pressure The researcher wants to know if there is evidence that the drug reduces blood pressure. At...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT