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The Men's Combined skiing event consists of a downhill and a slalom. Here are two displays of the slalom times in the Men's Combined of the 2006 Winter Olympics:
a) What features of the distribution can you see in both the histogram and the boxplot?
b) What features of the distribution can you see in the histogram that you could not see in the boxplot?
c) What summary statistic would you choose to summarize the center of this distribution? Why?
d) What summary statistic would you choose to summarize the spread of this distribution? Why?
the average score of all golfers for a particular course has a mean of 66 and a standard deviation of 5. suppose 100
What are the requirements for applying the hypothesis test for the difference in two population proportions? What are the calculations (computations)?
a random sample of size 9 is collected from a normally distributed random variable. the sample mean is 6.507 and the
Suppose there was 2,500 cards in the inventory and how would the results be useful to the owner to estimate the total value of the inventory. What equation is best?
Various temperature measurements are recorded at different times for a particular city. The mean of 25C is obtained for 60 temperatures on 60 different days. Assuming that pop st/deviation is 1.5C, test the claim that the population mean is 23C. Use ..
The times are shown here. At the 0.05 level, do the seat designs differ significantly in terms of the time that patrons stay? Using the appropriate statistical table, what is the most accurate statement we can make about the p-value for the test..
A sample space consists of 46 separate events that are equally likely. What is the probability of each? Suppose you have an extremely unfair coin: the probability of a head is 1/5, and the probability of a tail is 4/5.
in the game of chuck-a-luck we throw three dice each with six sides numbered 1 through 6. players bet a dollar on a
You want to create a 90% confidence interval for the true average number of yards per game he throws. What is the margin of error for this estimate?
The probability that Ms. Brown will sell a piece of property at a profit of $3,000 is 3/20 , the probability that she will sell it at a profit of $1,500 is 7/20 , the probability that she will break even is 7/20 , and the probability that she will..
We have found the density of the sum of two independent U(0,1) variables. Use that result to find the density of the sum of three independent U(0,1) variables.
question a particular brand of sugar is sold in bags labelled 1kg. the actual weights are approximately normally
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