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Calculate the value of z

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Reference no: EM132173780

Assume that z is the test statistic. (Give your answers correct to two decimal places.)

(a) Calculate the value of z for Ho: μ = 10, σ = 3.1, n = 36, x = 11.2. 

(b) Calculate the value of z for Ho: μ = 120, σ = 24, n = 25, x = 125.7. 

(c) Calculate the value of z for Ho: μ = 18.2, σ = 3.8, n = 135, x = 19.19. 

(d) Calculate the value of z for Ho: μ = 81, σ = 13.1, n = 51, x = 79.6. 

Reference no: EM132173780

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