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The wiehgt of a corn chips dispensed into 16-ounce bag b6 dispending machine has been identified as possessing a normal distrution with a mena of 16.5 ounces and a standred deviation of 0.02. suppose 400 bags of chips are randomly selected. Find the probability that the mean wieght of these 400 bags exceeds 16.6 ounces.
Use confidence interval to determine the estimated margin of error, Then determine the sample mean.
Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more? Why or why not?
Find the probability that he will answer all 10 questions correctly.
You need to estimate the mean number of travel days per year for outside salespeople. The mean of a small pilot study was 150 days, with a standard deviation of 42 days.
Fifty rounds of a new type of ammunition was fired from a M-1, and the muzzle velocity of the projectile was measured. The sample had a mean velocity of 853 meters per second, with a standard deviation of 2.9 meters per second
Describe what do you mean by terms 'false positive" and " false negative".
A researcher wants to estimate the average time (in minutes) spent in a car daily. This will be done by randomly surveying 300 individuals and calculating the sample mean.
Prediction interval for the regression line - Using the age and sick days data from table below, find the 98% prediction interval when x = 47 years.
At a 5% level of significance, is there enough evidence from this survey to conclude that more than half of all adults would rather have $100 than a day off?
Obtain a test statistic and p -value. Interpret the results at α = .01.
Table shows the smoking habits of group college students. If student is selected at random, determine the probability of getting someone who is man or a woman.
Flaws occur in the interior of plastic used for automobiles according to a Poisson distribution with a mean of 0.02 flaws per panel. If 50 panels are inspected, what is the probability that the number of panels that have one or more flaws is less ..
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