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study of sizes of metastatic carcinoid tumors in the heart was conducted by U. Pandya et al. and published as the article, "Metastatic Carcinoid Tumor to the Heart: Echocardiographic-Pathologic Study of 11 Patients" (Journal of the American College of Cardiology, Vol. 40, pp. 1328-1332). Based on that study, we assume that lengths of metastatic carcinoid tumors in the heart are normally distributed with mean 1.8 cm and standard deviation 0.5 cm.
b) How large could a tumor grow before a researcher might consider it to be an outlier and would want to double check the measurement.
c) Suppose a tumor had a length which was in the lower 15% of all metastatic carcinoid tumors. At most, how large could it have been?
d) 95.44% of all metastatic carcinoid tumors have lengths between ______ and _____.
Nationwide, GMAT scores in a particular year had an average of 528 with an SD of 112 and the scores roughly followed a normal curve. If a student scored 600 on the exam, approximately what percentage of test-takers scored below this student?
Findout the variance also standard deviation for the 2 distributions above. Evalute the variation of the data sets.
Create a histogram showing the distribution of symptom scores in this sample. Is this a skewed distribution? If so, is it skewed to the left or to the right?
I survey 50 potential consumers regarding their interest in the product, 34 express an interest in purchasing it. The maximum price each would be willing to pay is shown below.
A two-way ANOVA model was used to analyze an experiment with two levels of one factor, three levels of a second factor, and 6 observations per treatment combination.
Although the packet claims a germination rate of 92%, only 171 or 200 test seeds sprout. Is this evidence that the seeds have lost viability during a year in storage?
In a survey of women in a certain country (ages 20-29), the mean height was 62.9 inches with a standard deviation of 2.81 inches.
At the .01 significance level, is there a difference in the use of the four entrances?
Do the above values appear to be in statistical control, justify your answer?
At.01 significance level, is there relationship between job pressure and age?
where the deviations εi are assumed to be independent and Normally distributed with mean 0 and standard deviation σ. This model was fit to the data using the method of least squares. The following results were obtained from statistical software.
For the 20 test scores shown, find the percentile rank for a score of 86.
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