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Ten thousand draws are made at random with replacement from a box with ninety-nine tickets marked "0" and one ticket marked "1." True or false, and explain:
a) The sum will be around 100, give or take 10 or so.
b) There is about a 68% chance that the sum will be in the range 90 to 110.
The cost of one serving of peanut butter ( in cents) for a random sample of 19 jars of peanut butter was found to be:
Using the Empirical Rule for this data, what amount should be considered the cut-off for sales amounts being classi ed as unusually low?
A restaurant claims that its speed of service time is less than 18 minutes. A random selection of 36 service times was collected, and their mean was calculated to be 17.7 minutes.
As part of their application for a loan to buy Lakeside Farm, a property they hope to develop as a bed-and-breakfast operation, the prospective owners have projected:
Hypothesis testing of single mean - can we conclude that the mean weight is greater than 16 ounces? Determine the p -value.
A doctorhas developed an experimental drug for toe-nail fungus. He needs to test it out on some people to make sure it works. He has a list of 2000 people who could be potential subjects in his study. 1120 of these potential subjects have toe ..
The McBurger restaurant chain claims that the waiting time of customers for service is normally distributed with a mean of 3 minutes and a standard deviation of 1 minute.
Any value which is based on having measured a sample is called:
A combination of content and supportive examples would be greatly appreciated.
To revise an existing inventory system, a company needs to know something about the lead time for orders it places for a critical part. The company looks at the last 20 orders placed and finds that the lead time in days are:
Find out the probability that a student from the whole school system, chosen at random, has passed?
Basing your decision on the value of the t statistic, is it reasonable to say that this information supports the hypothesis that the mean of the population is 58?
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