statistics

posted by .

Suppose we have a set of blood pressures with a mean of 110 Systolic, and a sample standard deviation of 15 points. If we assume a normal distribution of Systolic blood pressures, then between what two values can we be assured 99.7% of all Systolic blood pressures will lie?

  • statistics -

    Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion (.4985) between score and mean to get the Z score.

    Z = (score ± mean)/SD

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math 156

    The systolic blood pressures of the patients at a hospital are normally distributed with a mean of 136 mm Hg and a standard deviation of 13.4 mm Hg. Find the two blood pressures having these properties: the mean is midway between them …
  2. Math

    The systolic blood pressures of the patients at a hospital are normally distributed with a mean of 136 mm Hg and a standard deviation of 13.4 mm Hg. Find the two blood pressures having these properties: the mean is midway between them …
  3. statistics

    suppose you have a set of blood pressures with a mean of 80 diastolic, and standard deviation of 5 points. assuming a normal distribution of blood pressures what two values should 95% of all blood pressures lie?
  4. Statistics

    Suppose we have a set of blood pressures with a mean of 120 Systolic, and a sample standard deviation of 20 points. If we assume a normal distribution of Systolic blood pressures, then between what two values can we be assured 99.7% …
  5. statistics college

    suppose we have a set of blood pressure set with a mean of 120 systolic and a sample standard deviation of 20 points assume a normal distribution of what two values should 95% of all systolic bp lie
  6. statistics

    Suppose that a researcher is interested in estimating the mean systolic blood pressure, , of executives of major corporations. He plans to use the blood pressures of a random sample of executives of major corporations to estimate . …
  7. Math

    The systolic blood pressures of a group of 18-year-old women are normally distributed with a mean of 120 mmHg and a standard deviation of 12 mmHg. What percentage of women in this group have a systolic blood pressure between 108 mmHg …
  8. math

    A special diet is intended to reduce systolic blood pressure among patients diagnosed with stage 2 hypertension. If the diet is effective, the target is to have the average systolic blood pressure of this group be below 150. After …
  9. statistic

    A special diet is intended to reduce systolic blood pressure among patients diagnosed with stage 2 hypertension. If the diet is effective, the target is to have the average systolic blood pressure of this group be below 150. After …
  10. STATISTICS

    Suppose that a researcher is interested in estimating the mean systolic blood pressure, , of executives of major corporations. He plans to use the blood pressures of a random sample of executives of major corporations to estimate . …

More Similar Questions