Statistics

posted by .

If many random samples of 64 students who took the second midterm examination in Math 10 are
taken, what is the 95th percentile of the average time to completion for these samples? Explain
what this number means.

  • Statistics -

    Insufficient data. Need to know mean and standard deviation.

    95 percentile means that 95% of the scores were equal to or less than that value. 

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. statistics

    Professor Smith conducted a class exercise in which students ran a computer program to generate random samples from a population that had a mean of 50 and a standard deviation of 9mm. Each of Smith's students took a random sample of …
  2. Statistics

    Suppose x has a distributionwith u=72 and 0=8 if random samples of size n=16 are selected, can we say anything about the x distributin of sample means if the originalx distribution is normal can we say anything about the x distribution …
  3. statistics

    random samples of 40 drivers average commuting time 0.05 level of significance standard deviation 7.2 and 9.1
  4. Statistics

    Suppose you and a friend each take different random samples of data pairs (x,y) from the same population. Assume the samples are the same size. Based on your samples, you compute r = 0.83. Based on her sample your friend computes 0.79. …
  5. statistic

    . For each of the following, assume that the two samples are selected from populations with equal means and calculate how much difference should be expected, on average, between the two sample means. a. Each sample has n _ 5 scores …
  6. Statistics

    A simple random sample of 50 students is taken from a class of 300 students. In the class, * the average midterm score is 67 and the SD is 12 * there are 72 women Let W be the number of women in the sample, and let S be the average …
  7. Statistics

    Suppose you and a friend each take different random samples of data pairs (x,y) from the same population. Assume the samples are the same size. Based on your samples, you compute r = 0.83. Based on her sample your friend computes 0.79. …
  8. Statistics

    a. Critical Thinking Critical Thinking Suppose you and a friend each take different random samples of data pairs (x,y) from the sample population. Assume the samples are the same size. Based on your samples, you compute r= 0.83. Based …
  9. Math - Statistics

    The proportion of red M&M's made is 0.24. Suppose one took a random sample of 51 M&M's. (a) What is the probability that an SRS of 51 M&M's has as its proportion of red M&M's 0.23 or below?
  10. Math

    2. The following is a random sample of grades achieved on statistics examination by 10 male students in a very large class and a random sample of grades achieved by 8 female students. Male 78 87 75 64 90 80 65 86 74 81 Female 71 50 …

More Similar Questions