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In a surgey of 280 adults over 50.80%; said they were taking vitamin supplements. Find the margin of error for this survey if we want a 99% confidence in our estimate of the percent of adults over 50 who take vitamin supplements.
Use descriptive statistics to explain how parental involvement and interests in child's education can impact on educational attainment measured in terms of their numeracy (v24_7), literacy (v28_7) and creativity skills (v25_7 and v26_7)
What is the probability of selecting an accounting major, given that the person selected is a male?
Compute the skewness for your data set using Pearson's
At.05 level of significance can director conclude that there is difference in the number of circuit cards bought by month?
Confirm whether given random variable is binomial distribution or not. If this experiment is finished with replacement, explain why.
The City Transit Authority plans to hire 8 new bus drivers. From the group of 100 qualified applicants, of whom 55 are men and 45 are women, 8 names are to be selected by lot. Suppose that Mary and John Lewis are among the 100 qualified applicants..
What is the probability that the average IQ, from a random sample of 64 individuals, is greater than 102?
What is the probability that they all hit the target?
Use Chebyshev's theorem to determine what percent of values will fall between 58 and 82 for data set with mean of 70 and standard deviation of 4.
Computing the probability values using normal distribution - The data set has a bell-shaped distribution. Between what two prices do 68% of the houses lie?
Based on this information, confidence level would be 90% that population mean is somewhere between?
Create a set of n observations from the binomial distribution with 1 trial and the event probability of 0.007, where n is your answer.
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