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Construct the following confidence intervals for your data set:
(A) 90% Confidence Interval
(B) 95% Confidence Interval
(C) 99% Confidence Interval
Then test to see whether it considerably varies from 0 [use alpha = 5%]. Don't forget to identify the null and alternative hypotheses.
Which of the following(s) can be considered (a) variable(s)?
Assume if random samples of size n = 9 are selected can we say anything about the distribution of sample means.
Write down the probability of that the median of the sample or average medians is greater or more than 320 minutes?
Assume you want to repeat the FDA experiment to achieve an estimation of the mean μ of the amount of caffeine content of a cup of coffee.
Compute mean x and standard deviation s of data above. Calculate Ho by using traditional/classical method.
Develop a linear regression equation for the given data and forecast how much money Robert will win if he spends $30.
A normal distribution with a mean of 55 and a standard deviation of 6 is evaluated to solve a business problem.
Develop percent frequency distribution and construct bar chart and pie chart.
Assume the population standard deviation is 1.2 hours. The standard error of the mean is:
Would it be reasonable to conclude that the population mean is 63 pounds?
At the .01 significance level, is there a difference in the use of the four entrances?
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