statistics

posted by .

how do you get thesampling and confidence intervals for this problem

sample scores of 1,2,3,4,5 and 95 percent confidence interval about the sample mean

  • statistics -

    You will have to calculate the mean and standard deviation. You will need those values to plug into a confidence interval formula.

    If you use a z-table, the formula is:

    CI95 = mean + or - 1.96(sd/√n)
    ...where n = sample size, sd = standard deviation, + or - 1.96 represents the 95% confidence interval using a z-table.

    I hope this will help.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. statistic

    1. Past experience indicates that the variance, ¦Ò2x, of the scores, X, obtained on the verbal portion of a test is 5,625. Similarly, the variance ¦Ò2y, of the scores, Y, on the mathematical portion is 2,500. (a) A random sample …
  2. Math-Statistics

    Find a confidence interval for ƒÊ assuming that each sample is from a normal population. a. P x = 14, ƒÐ = 4, n = 5, 90 percent confidence b. P x = 37, ƒÐ = 5, n = 15, 99 percent confidence c. P x = 121, ƒÐ = 15, n = …
  3. statistics

    Each of the following is a confidence interval for u = true average(population mean) resonance frequency (Hz) for all tennis rackets of a certain type: (114.4, 115.6) (114.1, 115.9) A) What is the value of the sample mean resonance …
  4. statistics

    Each of the following is a confidence interval for u = true average(population mean) resonance frequency (Hz) for all tennis rackets of a certain type: (114.4, 115.6) (114.1, 115.9) A) What is the value of the sample mean resonance …
  5. Math

    Suppose a population is sampled and the sample mean is 16.8. The sample standard deviation is 6.0 I am to assume the sample is larger than 30) and the sample size is 65. How do I calculate 95% and 98% confidence intervals. State which …
  6. Statistics

    These are the only ones that I am having problems with. Please help.. 8.You are given the sample mean and the sample standard deviation. Use this information to construct the 90% and the 95% confidence intervals for the population …
  7. Math Statistics

    5. Students in an introductory statistics class were asked to report the age of their mothers when they were born. Summary statistics include Sample size: 36 students Sample mean: 29.643 years Sample standard deviation: 4.564 years …
  8. Statistics

    When consumers apply for credit, their credit is rated using the FICO score. A bank manager used a random sample of the credit scores of 18 customers and determined the following 95% confidence interval: (613.6, 708.0) If the sample …
  9. Statistics

    The standard deviation for a population is σ = 15.3. A sample of 36 observations selected from this population gave a mean equal to 74.8. a) Make a 90% confidence interval for μ b) Construct a 95% confidence interval for …
  10. Business statistics

    2. Each of the following is a large-sample confidence interval for μ, the mean resonance frequency (HZ) for all tennis rackets of a certain type. (114.4, 115.6), (114.1, 115.9) a. What is the value of the sample mean resonance …

More Similar Questions