Concept explainers
* Assumed mid-point
25. Testing Goodness-of-Fit with a Normal Distribution Refer to Data Set 1 “Body Data” in Appendix B for the heights of females.
a. Enter the observed frequencies in the table above.
b. Assuming a normal distribution with mean and standard deviation given by the sample mean and standard deviation, use the methods of Chapter 6 to find the
c. Using the probabilities found in part (b), find the expected frequency for each category.
d. Use a 0.01 significance level to test the claim that the heights were randomly selected from a
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Elementary Statistics (13th Edition)
- Please box answerarrow_forward%) 6) The following table is obtained from the function f=1-x+x³ ↑ X 0.0 f 1.0 0.1 0.9010 0.2 0.8080 0.3 0.7270 0.4 0.6640 0.5 0.6250 0.6 0.6430 0.6160 0.7 0.8 0.7120 a. Find f (0.38), using second-degree Lagrange Interpolating polynomial. Find the actual error and estimated minimum and maximum errors. b. Find f (0.38) using 2nd degree Newton Polynomial. Set up divided difference table using relevant points. c. Find f' (0.4), Use central difference and Richardson's extrapolation to find answer with an error &=0(0.16). (Do not find the error) 0.8 d. Find f(x)dx; Use Composite Trapezoidal rule. Find the actual, 0.0 minimum, and maximum errors. 0.8 e. Find f(x)dx. Use Simpson's 1/3 rule. 0.0 00+ 5arrow_forwardEx7: Suppose that X has an exponential distribution with λ = 2. Determine the following: a/ P(X ≤0) and P(X≥2) b/ P(X ≤1) and P(1 2) and P(X<3)arrow_forward
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