# Question

Calculate the test statistic z, given Ho µ = 356 σ = 17 =354.3 and n = 120

## Answer to relevant Questions

Find the critical region and value(s) for Ha µ Find the value of for each of the following: a. Ho: µ = 580, z = 2.10, σ = 26, n = 55 b. Ho: µ = 75, z = - 0.87, σ = 9.2, n = 35 Using the computer output and information in Exercise 8.153, determine the value of the following: a. Hypothesized value of population mean b. Sample mean c. Population standard deviation d. Test statistic The length of Major League Baseball games is approximately normally distributed and averages 2 hours and 50.1 minutes, with a standard deviation of 21.0 minutes. It has been claimed that New York Yankees baseball games last, ...Waiting times (in hours) at a popular restaurant are believed to be approximately normally distributed with a variance of 2.25 during busy periods. a. A sample of 20 customers revealed a mean waiting time of 1.52 hours. ...Post your question

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