Iq score separating the bottom
Suppose that adults have IQ scores that are normally distributed with mean of 105 and a standard deviation of 20. Find P4 which is the IQ score separating the bottom 4% frm the top 96%.
(round to the nearest hundreth as needed)
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That data show the time intervals after eruption (to the next eruption) of certain geyser. Determine the regression equation, letting the first variable be independant (x) variable. Determine the best predicted time the interval after an eruption
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A lightbulb has a normally distributed light output with mean 5000 end foot-candles and standard deviation of 50 end foot-candles. Find a lower specification limit such that only 0.5% of the bulbs will not exceed this limit.
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A survey asks participants if they support or oppose a 5% tuition raise at UF. If there are 580 respondents (selecting using simple random sample) to a survey, determine the approximate margin of error?
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