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How do you calculate the confidence interval analysis for one variable and run the appropriate method for estimating a parameter based on a statistic?
A sample of 3000 observations has a mean of 85 and a standard deviation of 10. The distribution is bell-shaped. Using the empirical rule, find what percentage of the observations fall in the intervals
find the z values based on a standard normal distribution for an 86 confidence interval for a proportion for a 78
some sales representatives want to determine which approach would result in more sales for a manufacturing product. the
Suppose you think this ad exaggerates the temperature upwards, and you look at a random sample of 30 Christmas days and find an average of 50º and standard deviation of 8º. Conduct the test and give the p-value.
As the oldest of eleven children (all married), I'd like to point out our combined family numbers more than 100 who vote only for pro-life candidates.
Use a graphical technique to compare the divorce rates in 1992, 2008 and 2012 broken down by age for Australian Male. Describe your graph.
Normally distribution with µ=8 minutes and σ=2 minutes. If you select random samples of 25 calls, what percentage of the sample means would be between 7.8 and 8.2 minutes?
Like power, the term politics in organizations may conjure up a few negative images. However, organizational politics is not necessarily negative. Rather it is the use of power and influence in organizations.
you write a new app that can take a picture of someone and automatically draw a funny mustache on them. it takes 3
A shoe salesman want to see if his female customers have a preference in the color of shoe purchased. What is the test value for the following data?
Determine the POS system that you would choose, and provide your rationale for choosing that particular system.
Setup the alternative hypothesis that will test the claim that the percentage of women preferring white wine is 25% higher than men.
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