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Graphical depiction of data: Histogram and Ogive
1. Make a grouped frequency distributionusing 35,000 - 39,999 as the limits of the first class.
2. Make a histogram. Describe its shape. Predict, based on the shape, the relationship between the mean and median. Find the actual mean and median
3. Make an ogive. Show how to use it to estimate the median.
4. The mean for the US was 50022. Explain why that is different from the mean you found. (ignore the fact that you have medians rather than means)
q1.heights of men on a baseball team have a bell-shaped distribution with a mean of 177cm and a standard deviation of
Can you describe a data set for which one would one would prefer to use the median rather than the mean and can you think of a situation for which the mean would be preferred to the median and the mode?
The selection is made at random so that the selection of any component is equally likely. What is the probability of drawing any faulty component if 3 different components are drawn?
computing the z scores for the given data.for a normal distribution find the z-score value that separate the middle 90
Is your sample of MSU students significantly different from the population of MSU students in terms of the number of classes they take per semester (use alpha level .05)? To answer this question, follow all of your steps for hypothesis testing.
an average of 5 calls coming per minute. What is the probability that up to a minute will elapse until 2 calls have come in to the switchboard?
Wheel-Rite has agreed to ship the maximum number of wheel bearings that it produces each day to Itex when an order has been received.
If the rods' lengths produced by your line are normally distributed, with a mean equal to the target of 0.2 meters, and a standard deviation of 0.015m, what percentage of rods will be scrapped?
Find a 95% confidence interval for the true proportion of all medical students who plan to work in a rural community.
Impact on sampling of increasing sample size is: The potential for extreme sampling error is reduced.
Gas station sells 1400 gallons of gasoline per hour if it charges $ 2.05 per gallon but only 1100 gallons per hour if it charges $ 2.95 per gallon. What should gasoline price be to sell 1000 gallons per hour?
In regression equation, the value of y-intercept indicates the value of Y when the value of X is zero.
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