A random sample of 100 recorded deaths in the United Arab Emirates during the past year showed an average life span of 71.8 years, with a standard deviation of 8.9 years. Does this seem to indicate that the average life span today is greater than 70 years? Use a 0.05 level of significance with critical region of z > 1.645, state your conclusion if you will accept or reject your null hypothesis. Ho: µ = 70 years H1: µ = 70 years

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.3: Special Probability Density Functions
Problem 28E
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A random sample of 100 recorded deaths in the United Arab Emirates during the past year showed an average life span of 71.8 years, with a standard deviation of 8.9 years. Does this seem to indicate that the average life span today is greater than 70 years? Use a 0.05 level of significance with critical region of z > 1.645, state your conclusion if you will accept or reject your null hypothesis.

Ho: µ = 70 years

H1: µ = 70 years

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