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Q1) High value of serum cholesterol is thought to be risk factor for heart diseases. National cholesterol education program of national institutes of health in 1987 stated that recommended value for serum cholesterol is below 200mg/dl and value between 200 and 240 is considered to be borderline. Value above 240 may point to problem and NCEP recommended that lipoprotein analysis must be carried out. Based on these data it seems that many non hispanic whites have serum cholesterol values that are too high, particularly woem. Medical literatures also ultimately beginning to identify homocysteine is a very significant risk factor for heart disease, even among people with normal levels of serum cholesterol
a) Provide some possible reasons why non hispanic white males have higher mortality from heart and cerebrovascular diseaes when it seems from these data that non hispanic white females must have higher rates.
b) Give a possible description why serum cholesterol values for older males are lower than for younger males and reverse is true for females.
Determine the average score for ERAU graduates? Determine the value of test statistic? Significance level?
Perform a proper analysis. Describe your null and alternative hypothesis, report the p-value. What is your conclusion?
Compute the range and interquartile range
A study sponsored by American Express Co. and the French government tourist office found that old American stereotypes about French unfriendliness weren't true.
For the mold described in (g), can you find the probability that it's COST value will exceed $150,000? If yes, obtain this probability. If no, why not?
MATH1550H: Assignment: Question: Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form
Is there any evidence that the different teatments produced different responses? If so, which one seems to work best?
What is the null and alternative hypothesis? What is your final conclusion?
If standard deviation is 50 hours and α is equal to 0.01, what values for mean x will result in rejection of null hypothesis.
We are establishing a quality control program for a process and need to establish the mean and standard deviation for the process. The first 10 batches had samples of size 5 taken.
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.
Determine the probability that a randomly selected teacher earns more than $525 per week?
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