Possible samples can the sum of five numbers
Assume that Y takes upon the values {0, 1, 2, 3}, each with probability 1/4. Take random sample of 5 numbers from this distribution. In how many possible samples can the sum of five numbers (Y1 + Y2 + Y3 + Y4 + Y5) equal to 1?
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A ferritin test is popular test to determine a person's current iron stores. In women, ferritin is approximately normally distributed with mean of 89 ng/ml and standard deviation of 23 ng/ml.
Sport utility vehicles (SUVs), vans, and pickups are basically considered to be more prone to rollover than cars. In 1997, 24.0% of all highway fatalities involved rollovers; 15.8% of all fatalities in 1997 involved SUVs, vans, and pickups, given
Assume a certain capsule is manufactured so that the dosage of the active ingredient follows the distribution Y ~ N(? = 10 mg, ? = 1 mg). A dosage more than 13mg is considered dangerous.
Assume that population of people has an average weight of 160 lbs, and standard deviation of 50 lbs, and that weight is normally distributed. A researcher samples 100 people, and determines their weight. Determine the probability that researcher
Assume that Y takes upon the values {0, 1, 2, 3}, each with probability 1/4. Take random sample of 5 numbers from this distribution. In how many possible samples can the sum of the five numbers (Y1 + Y2 + Y3 + Y4 + Y5) equal to 1?
Assume you want to estimate the proportion of people in your community who would choose Thin Mints as their favorite Girl Scout cookie. Also suppose previous studies have shown this proportion to be around .4 .
Even if distribution of mothers' ages were somewhat skewed, would this confidence interval procedure still be valid with these data? Explain why or why not.
It has been conjectured by U.S. Census Bureau that "approximately 60% of foreign-born people who live in U.S. aren't naturalized citizens".
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