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Q1) The gestation period for human births can be taken as normally distributed with a mean of 266 days and a standard deviation of 16 days.If a gestation period is 276 days, what percentile among human births is this?
Q2) A study is conducted to investigate body mass index (BMI) in children living in urban neighborhoods. The following data are collected. 29 26 24 32 30 22 27 28 31. Compute the median.
Q3) Suppose that the probability that a child living in an urban area in the U.S. is obese is 20%. A social worker sees 15 Children living in urban areas. What is the probability that none are obese?
Q4) Glucose levels in patients free of diabetes are assumed to follow a normal distribution with a Mean of 120 and a Standard deviation of 16. What proportion of patients has Glucose levels exceeding 115.
The estimated salary range is $4,500, the margin of error should be $100 and the desired level of confidence is 95%.
Develop a 95% confidence interval of the difference between the daily population means for the two airports.
Determine the critical path and project completion time.
Such that setting the two equations together we see that at t=4 seconds, the distance that Peter travelled is the same as the distance of the room 40ft.
SAT I scores around the nation tend to have a mean scale score around 500, a standard deviation of about 100 points and are approximately normally distributed. A person who scores (a perfect) 800 on the SAT I has approximately what percentile rank..
What is a prime number, and why are prime numbers important? What do you call a number that is not prime? What is the largest prime number ever found?
In other words, could you generate two sets of random numbers (of length, say, 50) and set out the calculations in detail to determine whether the random variables are independent using chi-squared.
What is the purpose of sampling? What are some concerns and dangers of sampling? How important is the sample design to data validity? Explain.
Test the null hypothesis that the telephone survey technique has a probability of selecting a household with no children that is equal to the value obtained by the census.
The professor has informed us that 7.93 percent of her students received grades of A What is the minimum score needed to receive a grade of A?
Critically discuss the mean number of children per household for these families? Round your answer to at least one decimal place.
the amount of each active ingredient in 1 pound of each chemical are given in the file P15_74.xlsx. It is necessary that at least 100 pounds of chemical 2 be used. Determine the cheapest way of producing today's batch of NasaMist
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