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Sixty-four measurements are made on the speed of light. These average out to 300.007 and the SD is 10, the units being kilometers per second. Gauss model is assumed with no bias. (a) The speed of light is estimated as__________; this estimate is likely to be off by________ or so. (b) Find 95% confidence interval for the speed of light.
a u chart is to be used to control a corrugated paper product line. end product is produced in rolls of varying
Suppose you toss ten coins and count the number of heads. What is the probability that the number of heads you count will lie within two standard deviations of the mean?
Assume the least squares equation is Y' = 10 + 20X. What does the value of 10 in the equation indicate?
The owner of a small computer store personally sells one computer per week on the average. Use the Poisson distribution to find the probability of randomly selecting a week in which she personally sold three computers.
Consider a binomial distribution with 15 identical trials, and a probability of success of 0.5. Use the normal approximation to find the probability that x = 2.
one measure of the risk or volatility of an individual stock is the standard deviation of the total return capital
the effectiveness of a new bug repellent is tested on 14 subjects for a 10 hour period. assume normally distributed
what is the probability that ms. a mr. b and mrs. c win the rst second and third prizes respectively in a drawing if
1. the correlation between two variables is 0.8 for a sample of 10 observations. we wish to show there is a positive
a researcher decides to test her hypothesis that some toys are more fun to play with than others so she decides to
The author collected data consisting of the month of birth of actors who won Oscars. Use a 0.05 significance level to test the claim that Oscar winning actors are born in different months with the same frequency.
Round the intermediate values to 2 decimal places. Round your answer to 2 decimal places, the tolerance is +/-0.05. Type of music preferred is independent or not independent of region of the country?
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