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In a random sample of 18 ?people, the mean commute time to work was 34.5 minutes and the standard deviation was 7.3 minutes. Assume the population is normally distributed and use a? t-distribution to construct a 90?% confidence interval for the population mean μ. Also what is the margin of error of μ?? Interpret the results.
Given that a tutorial has just ended and there are no students currently waiting for the professor, what is the mean time until another tutorial can start?
the average score of a sample of 87 senior business majors at utc who took the graduate management admission test was
The average number of hours worked per week for married men in the early 1990s had a mean of 42.6 and a standard deviation of 12.9.
Explain how a matched pairs experiment should be conducted to compare texting and typing speeds. Be sure to explain the role of randomization, and why it is important in this experiment and how should randomization be used in this experiment
if iq scores are normally distributed with a mean of 100 points and a standard deviation of 15 points what proportion
To perform a certain type of blood analysis, lab technicians must perform two procedures. The first procedure requires either 1 or 2 separate steps, and the second procedure requires either 1, 2, or 3 steps. a) List the experimental outcomes assoc..
a 15 msec wind at 101.3 kpa and 20 degrees celeus enter a two-bladed wind turbine with a diameter of 15 m. calculate
While the usual Unit writing assignments take the form of a developed essay, for this Unit I would like you to write out short answer questions
The report of a European commission on radiation protection titled "Cosmic Radiation Exposure of Aircraft Crew" (2004) measured the exposure
If a person were to guess a number from 1-10, the chance of guessing a 4 would be 0.1. If 5 people were asked to guess a number from 1-10, the chance of guessing a 4 would be 0.5. The chance of 2 people guessing a 4 would be (0.1)(01.)=(0.01), correc..
in estimating the cost of a pile of bricks measured as 2m15m1.2mthe tape is stretched 1 beyong the standard length if
the claim is that the proportion of peas with yellow pods is equal to 0.25. the sample statistics from one experiment
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