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Given a normally distributed variable (x), if you know that for a value of x = 244 the z-score = 2.20, what is the probability of any x value being above 244? 0.9861 0.0139 0.0217 0.9783
Find the probability
Statistics from Cornell's Northeast Regional Climate Center indicate that Ithaca, NY, gets an average of 35.4" of rain each year with a standard deviation of 4.2". Assume the data is normally distributed.
Has there been a statistically significant change in the mean length of the bars?
How many standard deviations away from the mean is her age?
What are the assumptions made in performing the hypothesis test in Question 3? Are these assumptions reasonable? Provide explanation to substantiate your view.
thompson photo works purchased several new highly sophisticated processing machines. the production department needed
Calculate the mean and standard deviation and Based on these statistics, describe how these anthropometric data compare to the US male and Chinese female populations.
Prepare a report (see below) with your ranking of the judges based on the probabilities and conditional probabilities as well as the analysis of each court. Include the following seven (7) items in table format to support your ranking. Be sure to use..
Give the 95% confidence interval.
A student surveyed 200 students about hours a night spent sleeping, the data showed a normal distribution with a mean of 6.8 hours and a standard deviation of 0.75 hours. what percentage of the students spent less than 4.55 hours sleeping per..
Define the hypothesis and find the standard error of the difference in the means also find the test statistic - Determine the required sample size to be able to use a 99% confidence interval.
The student government at a university conducted a study
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