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If the Population Deviation Is Known and We Wish

Question 145

Multiple Choice

If the population deviation If the population deviation is known and we wish to estimate the population mean with 90% confidence, what is the appropriate critical value z to use? A) 1.28 B) 1.645 C) 1.96 D) 2.33 E) 2.58 is known and we wish to estimate the population mean If the population deviation is known and we wish to estimate the population mean with 90% confidence, what is the appropriate critical value z to use? A) 1.28 B) 1.645 C) 1.96 D) 2.33 E) 2.58 with 90% confidence, what is the appropriate critical value z to use?


A) 1.28
B) 1.645
C) 1.96
D) 2.33
E) 2.58

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