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A lumber mill is tested for consistency by measuring the variance of board thickness. The target accuracy a variance of 0.0015 or less. If 24 measurements are taken and their variance is 0.005, is there enough evidence to reject the claim that her standard deviation is within the limit a =.01?
a gambler plays roulette and makes a 1 bet on four numbers 400 times. the bet pays 8 to 1. find the chance that the
The function that defines the probability distribution of a continuous random variable is a?For a continuous random variable x, the probability density function f(x) represents.
michael and kevin return to the candy store but this time they want to purchase nuts. they cant decide among peanuts
seven people will be seated in the first row of a movie theater this includes two pairs of sisters the adams and the
Tthe mean amount of paint per 1-gallon can is 1.00 gallons. Use a significance level of 0.05. Is (are) the critical region(s) for this test in the left tail, right tail, or both tails?
why is it desirable to have the explanatory variables spread out to test a hypothesis regarding b1 or construct
a judge chooses a jury of n people out of a pool of n people. the choice is uniform among all subsets of n elements of
you toss a fair coin 400 times. us- ing the normal approximation find the approximate probability of getting1 exactly
ssuming that the shipment includes 3% defectives, what is the probability that the shipment will be accepted? (Hint: Use the binomial distribution.)
Based on this, compute a 99% confidence interval for the proportion of all letters mailed in the United States that were delivered the day after they were mailed.
Recognize and explain potential threats (up to 3) to external validity.
The city of Vancouver Office of Emergency Management reported that 911 operators receive an average of 7.2 calls per hour. Assume that the number of 911 calls follows Poisson distribution
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