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Find the following probabilities for X = pulse rates of women, for which the mean is 75 and the standard deviation is 8. Assume a normal distribution.
a. P(X ≤ 71).
b. P(X ≥ 85).
c. P(59 ≤ X ≤ 95).
Now imagine repeating the survey many, many times, each time recording a different sample mean commute distance. In the long run, a histogram of these sample means represents?
Compute the probability that a random sample of 50 infants born at full term results in a sample mean of less than 3500 grams.
Use the following information from a normal population with mean μ = 52 and variance σ2 = 22.5 to calculate the following questions.
examine the below topic and provide a hypothesis for which you would use the one-tailed and two-tailed t test to
Normal distribution is the most important type of distribution in the real world and applies to many different areas. For example--the IQ test is normally distributes, Can you find the characteristics of the IQ test?
he Department of Motor Vehicles (DMV) can service customers at a rate of 20 per hour (or 1/3 per minute) when it comes to license renewals. The service time follows an exponential distribution.
The samples do indicate that university A's students are younger than university B's; but is the difference significant at the 1% level?
optimism and longevitya cancer specialist from the los angeles county general hospital lacgh rated patient optimism in
the lifetime in hours of a certain kind of radio tube is a random variable with the probability density function given
according to the centers for medicare amp medicaid services 16 of nursing homes received five stars in overall ratings
the mean home price in raleigh north carolina is 217600. assuming that the home prices are normally distributed with a
The manager of a package courier service believes that packages shipped at the end of the month are heavier than those shipped early in the month.
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