math

posted by .

If the population is bell-shaped, then the interval that is 3 standard deviation away from the center contains what percent of data in the population?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    The mean of a sample of 25 was calculated as xbar = 500. The sample was randomly drawn from a population whose standard deviation is 15. Estimate the population mean with 99% confidence. B.) Repeat part (a) changing the population …
  2. Statistics

    Which of the following statements correctly interprets a 95% confidence interval on a population mean?
  3. math

    Average truancy per student is 8 days per semester with a standard deviation 2.2 and a population of 250 students. a. What percent of the population is truant more than 9 days?
  4. stats

    A sample of 12 observations is selected from a normal population for which the population standard deviation is known to be 4. The sample mean is 19. (Round your answers to 3 decimal places.) (a) The standard error of the mean is The …
  5. statistics

    How do we compute sample size fluctuations?
  6. sample size/ standard deviations

    How do we compute sample size fluctuations?
  7. statistics

    The data below are the ages of a random sample of 8 men in a bar. It is known that the population of ages are normally distributed with a standard deviation of 11. Determine the 93% confidence interval estimate of the population mean. …
  8. college math

    Math homework please help!! 2. Suppose that people’s weights are normally distributed, with mean 175 pounds and a standard deviation of 6 pounds. Round to the nearest hundredth of a percent a. What percent of the population would …
  9. statistics

    Consider the test of hypothesis for the equality of two population means. The sample data from the first population is: n = 10, x-bar = 52.4, s = 5. The sample data from the second population is: n = 8, x-bar = 48.2, s = 6. Both variables …
  10. math

    A medical researcher wants to determine whether male pulse rates vary more or less than female pulse rates. Using the sample pulse rates in Data Set 1 in Appendix B, the male pulse rates can be summarized with the statistics 40=n,69.4=x,11.3=s. …

More Similar Questions