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When bucketing data for a histogram what is the standard way of deling with data entries that are on the boundary of two buckets? To elucidate point, if hvae buckets of 0.15 size starting at 1, should the data entry 1.15 fall in the first bucket or the second?
A sample of 23 European countries found that the variance of life expectancy was 7.3 years. What is the 95% confidence interval for the variance of life expectancy in Europe.
Describe different methods of establishing correlation between variables and provide an example of each. Discuss the advantages and disadvantages of each method and where each must be applied.
Testing for two Proportions - Is the difference between the averages statistically significant?
Now suppose that a finished product is randomly selected. What is the probability that it is defective?
If you take the mean weights for random groups of 10 adults and form a new distribution, how will this new distribution compare to distribution of individuals?
An experimental drug is administered to 30 randomly selected indivduals, with the number of individuals responding favorably recorded. Does this represent a binomial experiment.
You've two separate sets of data. From one set you calculate the standard error to be 500. From the other set, the standard error was 5.
Comparing the results from (a) and (e), what happens to the required sample size when we increase the confidence level?
At the 0.05 level of significance, can we conclude Middletown students remained in their districts less time than Brockton students? Make use of 5-step hypothesis testing procedure.
The mean top of knee height of a sitting mate is 20.7 in.
To find the equation of the line of the best fit
Caselet on McDonald’s vs. Burger King - Waiting time
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