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A recent report by the American Medical Association stated the average annual salary of psychiatrists is $189,121 with a population standard deviation of $26,975. A group of hospital administrators randomly sampled 64 psychiatrists and found and average salary of $198,630. The group claims that the average annual salary is actually higher than what the American Medical Association reported. What is the P-value for this one-sided test?
The annual income of a large group of supervisors at Belco Industries follows the normal distribution. The mean amount earned yearly is $48,000 and the standard deviation is $1,200.
When bucketing data for a histogram what is the standard way of dealing with data entries that are on the boundary of two buckets?
What is the probability that a diner is an undergraduate and has bought a meal and what is the probability that someone who has bought a meal is a postgraduate?
Of those mountain climbers who attempt mt. McKinley, only 60% reach the summit. In a random sample of 14 mountain climbers who are going to attempt mt. McKinley, what is the probability of each of the following?
question historically the precipitation of july in twin cities in inches approximately follows a normal distribution
Introduce some basic library search tools and demonstrate the relevance of statistics (in this case, regression analysis) to your chosen field of study. MS 3043 - Spring 2014 Project
How would you choose an appropriate level of significance for your statistical test? What are the possible outcomes and limitations of your statistical test?
What time usage guarantee (in hours) should the manufacturer advertise in order to ensure that only 4% of the cartridges fail to meet the guaranteed time usage?
question a dean of a business school wanted to know whether the graduates of her school used a statistical inference
Each inspector makes his or her inspection at a different time. What is the probability that at least one inspector will find a defective widget?
Ball bearings are manufactured with a diameter of 5 mm. But the process has variation, so the diameter is normally distributed with a mean of 5 mm and a standard deviation of .02 mm. A) What proportion of ball bearings are more than 5.03 mm?
a box contains 11 red balls 5 green balls and 4 black balls. a sample of 8 is to be picked from the box. in how many
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