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The capacity of an elevator is 10 people or 1630 pounds. The capacity will be exceeded if 10 people have weights with a mean greater than 1630/10=163 pounds. Suppose the people have weights that are normally distributed with a mean of 172 lb and a standard deviation of 30 lb.
the probability is 1 in 4 million that a single auto trip in the US will result in a fatality. Over a lifetime, an average driver takes 50,000 trips. What is the probabiltiy of a fatal accident over a lifetime. Explain.
Show that it satisfies the required condition for being a probability distribution.
how many binary sequences of length 18 are there that start with a run of 1s - that is a conseuctive sequence of at
Ethics The one-time fling! Have you ever purchased an article of clothing (dress, sports jacket, etc.), worn the item once to a party, and then returned the purchase?
suppose we wish to know if there is a difference in choice of model based on comfort between population groups
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
which of the following accurately describes the proportions in the tail of a normal distribution?a. proportions in the
the average score for 49 teenage boys playing a certain computer game was 75000 points per player. if the standard
Find the test statistic value for two mean tests using equal variance formula.
ample of fifteen 8 ounce Baby Ruth candy bars are weighed and it is found sample standard deviation is 0.6 ounces. Test company's claim at (alpha sign) is 0.05.
students of dr. psychicu2019s training class wanted to see if they do learn the skills at the end of the class. each
Construct a 95 percent confidence interval for the difference in proportions for the two populations represented by these samples.
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