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What is the difference between a normal inverse and a normal distribution? How do you know when to use a norm.inv or norm.dis when calculating statistics in Excel?
Test the claim at alpha-.05 that the average wage has not changed by finding the p-value for the test.
The gas price index for 1985 was 218.5 and the gas price index for 2000 was 276.8. If it cost $18.13 to fill your gas tank in 1985, how much would it have cost to fill the same tank in 2000?
This problem related to Basic Statistics and it discuss about the examples of qualitative and quantitative methods of data collection
The ability to pay attention and the level of stimulation in the environment. how would a researcher work around this issue?
Using Sally's estimate of demand that follows, how many T-shirts should she produce for the upcoming event?
Use the method of least squares to model the relationship between x and y.
Nursing program gives a qualifying exam to students applying for admission. The grades on the exam have a mean score of 80 with a standard deviation of 6. Describe the distribution of grades.
Problem: Sample space. In each of the following situations, describe a sample space S for the random phenomenon. (a) A basketball player shoots four free throws. You record the sequence of hits and misses.
1. An article reports the results of an analysis of salespersons' performance level as a function of two factors: task difficulty and effort. Included in the article is the following ANOVA table:
What is the breakeven volume between option 1 and option 2? You should calculate this answer, but be sure you verify with your graph.
According to a recent survey, the salaries of assistant professors have a mean of $41750 and a standard deviation of $7000. Assuming that the salaries of assistant professors follow a normal distribution, find the proportion of assistant professors..
a set of test scores is normally distributed with a mean of 100 and a standard deviation of 15. if cases are drawn
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