binomial

posted by .

Independent samples of n1 = 400 and n2= 400 observations were selected from binomial populations 1 and 2, and x1 = 100 and x2 = 127 successes were observed. Calculate the approximate standard error for the statistic, the point estimator for the difference ( p1-p2) in the two binomial proportions?
A. 0.0441
B. 0.0287
C. 0.0536
D. 0.0318

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. binomial random variables

    compute the probability of x successes in the n independent trials of the expirement. n=10 p=0.4 x=3
  2. Statistic

    6.18 Calculate each binomial probability: a. Fewer than 4 successes in 12 trials with a 10 percent chance of success. b. At least 3 successes in 7 trials with a 40 percent chance of success. c. At most 9 successes in 14 trials with …
  3. statitics

    Find the mean and standard deviation for a binomial distribution with these values: a. n = 1000, p = 0.3 b. n = 400, p = 0.01 c. n = 500, p = 0.5
  4. Binomial

    Independent samples of n1 = 400 and n2= 400 observations were selected from binomial populations 1 and 2, and x1 = 100 and x2 = 127 successes were observed. What is the best point estimator for the difference ( p1-p2) in the two binomial …
  5. statistics

    A researcher is testing a null hypothesis that states: H: ì = 50. A sample of 25 scores is selected and the mean is M = 55.Assuming that the sample variance is s2 = 100, compute the estimated standard error and the t statistic. Is …
  6. statistics

    Consider a binomial experiment with 20 trials and probability 0.45 on a single trial. Use the binomial distribution to find the probability of exactly 10 successes. Round your answer to the thousandths place
  7. Math

    For a binomial distribution with n=20 trials and probability of success p=.05, we let r= number of successes out of 20 trials. Use the normal approximation to estimate P(6<=r<=12). How does this value compare with the corresponding …
  8. binomial distribution

    For a binomial distribution with parameters n = 5 , p = 0.3 . Find the probabilities of getting : (i) Atleast 3 successes. (ii) Atmost 3 successes. n = 5 , p = 0.3
  9. statistics

    Assume a binomial probability distribution has p = .60 and n = 200. a)What are the mean and standard deviation (to 2 decimals)?
  10. math

    Independent random samples, each containing 800 observations, were selected from two binomial populations. The samples from populations 1 and 2 produced 320 and 400 successes, respectively. Construct a 90% confidence interval for the …

More Similar Questions