# Question: What is a normal probability plot and how is it

What is a normal probability plot and how is it used?

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Consider a sample data set with the following summary statistics: s = 95, QL = 72 and QU = 195. a. Calculate IQR. b. Calculate IQR/s. c. Is the value of IQR/s approximately equal to 1.3? What does this imply? An evaluation of the habitats of endangered salmon species was performed in Conservation Ecology (December 2003). The researchers identified 734 sites (habitats) for Chinook, coho, or steelhead salmon species in Oregon and ...Refer to Exercise and the Associated Press/Petside.com poll that revealed that half of all pet owners would get their next dog or cat from a shelter (USA Today, May 12, 2010). Consider a random sample of 500 pet owners and ...Suppose x has an exponential distribution with θ = 2.5. Find the following probabilities: a. P(x ≤ 4) b. P(x > 5) c. P(x ≤ 2) d. P(x > 3) Find a z -score, say, z0, such that a. P(z ≤ z0) = .8708 b. P(z ≥ z0) = .0526 c. P(z ≤ z0) = .5 d. P(-z0 ≤ z ≤ z0) = .8164 e. P(z ≥ z0) = .8023 f. P(z ≥ z0) = .0041Post your question