the mean monthly income students is $500,according to chebyshev‘s theorem,at least 75% of the incomes in...
The mean income of a group of sample observations is $500; the standard deviation is $40. According to Chebyshev’s theorem, at least what percent of the incomes will lie between $400 and $600? Percent of the incomes %
The mean income of a group of sample observations is $500: the standard deviation is $40. According to Chebyshev's theorem, at least what percent of the incomes wil lie between $400 and $600? Percent of the incomes
Suppose you are given the following information about students at Texas State: Mean monthly income: 1,000 US dollars Standard deviation: 220 dollars. A colleague from Mexico reports on students at TecMilenio University in Monterrey: Mean monthly income: 13,000 Mexican pesos Standard deviation: 2,500 pesos. Which group of students shows the greatest relative variation?
A sample of 500 part-time studebts revealed that their annual incomes were a mean income of $30,000 and a standard deviation of $3,000. The number of students who earned more than $36,000 was appendix); remember that the area you are looking for is in the right tail; then apply this area to the normally distributed with Hints: Find the z value (use the Area under the Normal Curve total number of students. Please show how you get the z value....
Central limit theorem: Sample mean The mean salary offered to students who are graduating from Coastal State University this year is $24.260, with a standard deviation of $3712. A random sample of 75 Coastal State students graduating this year has been selected. What is the probability that the mean salary offer for these 75 students is $25,000 or more? Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places. ?
ccording to Chebyshev's theorem, at least 75% of the individuals in a sample of 50 killer whales weigh between 3740 kg and 4860 kg. Find the mean and standard deviation of the weightsof the killer whales in this sample. n 50
The mean score of a college entrance test is 500 ; the standard deviation is 75 . The scores are normally distributed.a)What percent of the students scored below 320 ?b) What percentage of the students scored above 575 ?c) What percentage of the students scored between 400 and 550 ?
According to Chebyshev's Theorem, at least what proportion of the data will be within 1.2 standard deviation distance about the mean? 27% 30% 61% 68% 69%
In a random sample of 8 people with advanced degrees in biology, the mean monthly income was $4744 and the standard deviation was $580. Assume the monthly incomes are normally distributed. Construct a 95% confidence interval for the population mean monthly income for people with advanced degrees in biology.
At a college, 61 female students were randomly selected and it was found that their monthly income had a standard deviation of $230.85. For 121 male students, the standard deviation was $320.53. Test the claim that variance of monthly incomes is higher for male students than it is foi female students. Use a = 0.01.