Question

In: Statistics and Probability

4) Blood calcium levels are measured in mg/dL. In a group of patients over 30 you...

4) Blood calcium levels are measured in mg/dL. In a group of patients over 30 you find the following: μ = 9.3 mg/dL, and σ = 2.35 mg/dL.

a) Give the blood calcium values for the middle 50% of patients.

(Hint/comment: if you want the middle 50%, how many percent go in each tail?)

b) Give the blood calcium values for the middle 70% of patients. c) Give the 85th percentile.

d) Are you surprised by the answers to (b) and (c)? Explain. If you're not sure what's going on, draw some pictures of the normal curves.

Solutions

Expert Solution

orchestra answered 2 years ago
Next > < Previous

Related Solutions

4) Blood calcium levels are measured in mg/dL. In a group of patients over 30 you...
4) Blood calcium levels are measured in mg/dL. In a group of patients over 30 you find the following: μ = 9.3 mg/dL, and σ = 2.35 mg/dL. a) Give the blood calcium values for the middle 50% of patients. (Hint/comment: if you want the middle 50%, how many percent go in each tail?) b) Give the blood calcium values for the middle 70% of patients. c) Give the 85th percentile. d) Are you surprised by the answers to (b)...
Blood calcium levels are measured in mg/dL. In patients over 30, μ = 9.7 mg/dL, and...
Blood calcium levels are measured in mg/dL. In patients over 30, μ = 9.7 mg/dL, and σ = 2.42 mg/dL. a) Give the blood calcium values for the middle 50% of patients. b) Give the blood calcium values for the middle 60% of patients. c) Give the 80th percentile. d) Are you surprised by the answers to (b) and (c)? Explain. *** I literally don't know how to solve this. Could you please go step by step without assuming that...
Systolic blood pressure was measured in a group of 30 patients diagnosed with hypertension: Patient No....
Systolic blood pressure was measured in a group of 30 patients diagnosed with hypertension: Patient No. 1 2 3 4 5 6 7 8 9 10 Blood pressure, mmHg 155 138 126 152 164 142 128 132 170 145 Patient No. 11 12 13 14 15 16 17 18 19 20 Blood pressure, mmHg 129 122 128 127 141 132 127 145 138 138 Patient No. 21 22 23 24 25 26 27 28 29 30 Blood pressure, mmHg 127...
Cholesterol (mg/dL) was measured in the same patients before and after taking drug D. Do a...
Cholesterol (mg/dL) was measured in the same patients before and after taking drug D. Do a Wilcoxon signed-rank test for paired samples: state the null and (non-directional) alternative hypotheses, calculate (or bound) the p- value, and clearly state your conclusion for significance level ? = 0.05. The appropriate table is at the end of the quiz. Before. After 200 250 190 245 180 175 190 188 180 500 200 260 190 260 190 230             a) Why would you do...
2. Data set 1: Blood Cholesterol (in mg/dL) Levels of 32 Participants at a Community Health...
2. Data set 1: Blood Cholesterol (in mg/dL) Levels of 32 Participants at a Community Health Fair 180 185 200 198 211 203 199 195 210 190 210 200 180 197 188 198 187 240 189 168 185 220 188 200 188 259 195 221 200 196 194 196 dispersion (i.e., range, interquartile range, and standard deviation) (2 points urgent pleas!!!!!!
Laboratory Values: Fasting Blood Glucose: 118 mg/dl HbA1C: 4.0% Total Cholesterol: 245 mg/dl LDL-C: 140 mg/dl...
Laboratory Values: Fasting Blood Glucose: 118 mg/dl HbA1C: 4.0% Total Cholesterol: 245 mg/dl LDL-C: 140 mg/dl HDL-C: 33 mg/dl Triglycerides: 139 mg/dl 5.   Please comment on each laboratory value. What does each value represent? Are these values within normal ranges or are they abnormal? If a value is abnormal, is it high or low?
Toxic levels of lead are 5 ug/dL in the blood of children and 10 ug/dL in...
Toxic levels of lead are 5 ug/dL in the blood of children and 10 ug/dL in the blood of adults. If the lead levels were measured at 1.5% m/v and a child with 2.5 L of blood drank 1 L of that water, would they be at risk of lead toxicity? Justify your answer with calculations.
The blood LDL (in mg/dl) present in the samples of 11 patients are: 5, 19, 42, 11, 50, 30, 21, 0, 52, 36, 27. Find the median?
The blood LDL (in mg/dl) present in the samples of 11 patients are: 5, 19, 42, 11, 50, 30, 21, 0, 52, 36, 27. Find the median?
Calcium levels in people are normally distributed with a mean of 9.7mg/dL and a standard deviation...
Calcium levels in people are normally distributed with a mean of 9.7mg/dL and a standard deviation of 0.3mg/dL. Individuals with calcium levels in the bottom 15 % of the population are considered to have low calcium levels. Find the calcium level that is the borderline between low calcium levels and those not considered low. Carry your intermediate computations to at least four decimal places. Round your answer to one decimal place.Calcium levels in people are normally distributed with a mean...
in a California study 69 of 612/4 graders had blood cholesterol above 200 MG/DL, a level...
in a California study 69 of 612/4 graders had blood cholesterol above 200 MG/DL, a level that is dangerously high for children. a. Construct a 90% confidence interval estimate for the population proportion with dangerously high blood cholesterol. b. construct a 96% confidence interval estimate for the population proportion with dangerously high blood cholesterol. c. which is the accurate (a or b) estimate of population proportion and why? d. do you have to make any assumptions about normality while answering...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT