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One can calculate the 95% confidence interval for the mean with the population standard deviation known. This will give us an upper and a lower confidence limit. What happens if we decide to calculate the 99% confidence interval? Describe how the increase in the confidence level has changed the width of the confidence interval. Do the same for the confidence interval set at 80%. Include an example with actual numerical values for the intervals in your post to help with your explanations.
Nutrition a new food is designed to add weight to mature beef cattle. The weight in pounds is given by W = 13xy(20 - x - 2y), where x is the number of units.
What percent of the data points will fall in that range?
What if the probability of heads is 0.25? In the Probability applet, set the probability of heads to 0.25. Explore what happens for different numbers of tosses.
A manufacturing plant supplies various engine components to manufacturers of motorcycles on a just-in-time basis. Planned production capacity for one
a large firm has 85 of its service calls made by a contractor and 10 of these calls result in customer complaints. the
two points are randomly on a line of length 14 so as to be on opposite sides of the midpoint of the line. in other
1. what percentage of people falls between -2 and 2 standard deviations on iq scores if the general population of iq
If she gets 80 new members and they can be considered a random sample of all the museum's members, what is the probability that she can achieve her goal?
In a certain state, an appeals court consists of seven judges. For a routine case, three judges are chosen at random as a panel to hear a case and render a decision. How many distinct panels can be formed?
Compute the probability that neither customer purchases (# purchases = 0), and enter your answer with 3 decimal places
Find the approximate probability that at least 70?% of 100 randomly sampled people taking the bar exam will pass.
Mutual funds. In March 2002, Consumer Reports listed the rate of return for several large-cap mutual funds over the previous 3-year and 5-year periods.
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