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The manager of a pizza chain in Albuquerque, New Mexico, wants to determine the average size of their advertised 16-inch pizzas. She takes a random sample of 25 pizzas and records their mean and standard deviation as 16.10 inches and 1.8 inches, respectively. She subsequently computes the 95% confidence interval of the mean size of all pizzas as [15.36, 16.84]. However, she finds this interval to be too broad to implement quality control and decides to reestimate the mean based on a bigger sample. Using the standard deviation estimate of 1.8 from her earlier analysis, how large a sample must she take if she wants the margin of error to be under 0.5 inch?
Draw a graph (the uc I MPK graph) depicting the state of affairs and label this initial profit maximizing point as point A. A completely labeled and correct graph is worth 10 points.
nineteen customers have placed service calls to obtain atampt u-verse. the maintenance technician can only service ten
in a recent study it was reported that 22 of those who had depression went on to develop dementia compared to only 17
a seed company claims that its variety of seeds has a 90 germination rate. for a sample of 800 seeds 700 germinated.
on average josh makes three word-processing errors per page on the first draft of his reports for work. what is the
Does your analysis change if the term "average" refers to the mean? To the median? Explain what effect this misinformation might have on the perception of the nation's schools.
historically 1.3 of division 1 football starting players get pro contracts.a of the 72 senior starting players in a
Calculate the limits within which the weight of the packets should lie assuming that the machine is not been classified as faulty.
The probability distribution of the daily demand for a product is shown below. What is the expected number of units demanded per day? Determine the variance and the standard deviation.
a study indicates that in ca 36 of people ages 17 to 26 have at least one tattoo.you randomly sample 30 people in that
Suppose the people living in a city have a mean score of 48 and a standard deviation score of 7 on a measure of concerns about the environment.
the united states department of agriculture reports that the mean american consumption of carbonated beverages per year
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