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Suppose that a random sample of 100 students is drawn from a population of 3000 college students. Among sampled students, the average IQ score is 115 with a standard deviation of 10. What is the 99% confidence interval for the college students' IQ score?
Considering that the average IQ test score at national level for the population in the same age range is 110 (standard deviation of 7), how likely is it that the students admitted at that particular college are randomly selected? Do you think that the school applies some sort of entry selection? If yes, do you think that the selection is efficient? Why? Please provide the details of your calculations.
It has been identified that a binomial distribution fits the delivery commitment of Amazon orders "3 days or less" and this is met 95% of the time.
Do you feel lucky? gives data on 60 children who said how big a part they thought luck played in solving a puzzle. The data have a discrete 1 to 10 scale.
try to recall a decision you made today. discuss how you made the decision. now follow the steps of the scientific
Gina took the SAT in 1994 and scored 500. Her cousin Colleen took the SAT in 2013 and scored 530. Who did better on the exam, and how can you tell?
Dyeing yarn. The unique colors of the cashmere sweaters your firm makes result from heating undyed yarn in a kettle with a dye liquor. The pH (acidity) of the liquor is critical for regulating dye uptake and hence the final color. There are 5 kett..
if a basketball player is a 60 free throw shooter then on average how many free throws will he make in a game with six
The number of monthly breakdowns of a super computer is a random variable having a Poisson distribution with λ = 1.8. Use the formula for the Poisson distribution to find the probabilities that this computer will function
1. Research a focusing event that occurred between 1927-1950. 2. Identify a federal, state, or local government agency or non-governmental organization (NGO) such as a church or charity that provided assistance to the disaster victims. See the tex..
Effects of binge drinking A common definition of "binge drinking" is 5 or more drinks at one sitting for men and 4 or more for women.
Twins. In the United States, the probability of having twins (usually about 1 in 90 births) rises to about 1 in 10 for women who have been taking the fertility.
You can help him determine this by calculating the following probability: What is the probability of Jim collecting a sample mean from those 50 students that is less than or equal to 48.7 gallons?
Utlizing binomial approximation to normal finding the normal model. A grower claims that only 13 percent of the strawberries he grows are unsatisfactory.
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