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Simulate survival times X from an exponential distribution with rate lambda=1 with a censoring distribution C being exponential with rate theta = 2/3 in R.
Plot Kaplan-Meier Survival curve estimates along with true survival curve for n=25,100,1000
How could your answer in question (a) change if you knew returns followed a skewed distribution instead of a normal distribution? Explain briefly.
Using the p- value approach, test the hypotheses at the 5% level of significance.
Has the average community level of suspended particles for the month of August exceeded 30u/m3?
Are you doubtful of any of these data points? if so why does there show to be a linear relation between degree of stenosis and nuber of reactive nuclei?
Archaeopteryx is an extinct beast having feathers like a bird but teeth and a long bony tail like a reptile. Five fossil specimens have preserved both the femur and humerus bones. The measurements (in centimeters) for each bone are given below.
Determine the mean and standard deviation of this distribution?
What is the major difference between finding significance and confidence intervals using population samples or using population proportions?
Discuss the subject matter in the article, and interpret the results and what the confidence interval and margin of error mean as they apply to the specific subject matter.
How do you verify that the assumption of a normal distribution is correct if you've only the mean and standard deviation?
a random sample of 100 doctors was selected. Suppose you reject the null hypothesis. What conclusion can you draw?
In a simple linear regression analysis of 18 data points the following ANOVA table was found.
Calculate the value of Pearson correlation. Illustrate what information is provided by the numerical value of the Pearson correlation.
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