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Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

For the equations below which statement is true ? -2x=14 6x=-42

Solve for b. ab + c= d b= a + old ob=allc-ch b= (d-c/a