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The first two questions (1 and 2) refer to the following: The Occupational Safety and Health...

The first two questions (1 and 2) refer to the following: The Occupational Safety and Health Commission is concerned with asbestos exposure in the workplace. A building is only considered to be safe if its mean asbestos exposure is 0.10 fibers per cubic centimetre (f/cm3) or less. Asbestos exposure levels are measured at ten randomly selected locations in one building. The sample mean is calculated to be 0.12 f/cm3. Exposure levels in the building are known to follow a normal distribution with standard deviation 0.03 f/cm3. A hypothesis test is conducted at the 5% level of significance to determine whether the building is unsafe. Question 1 (1 point) What are the null and alternative hypotheses? Question 1 options: A) H0: μ = 0.10 vs. Ha: μ < 0.10 B) H0: μ = 0.10 vs. Ha: μ ≠ 0.10 C) H0: μ = 0.10 vs. Ha: μ > 0.10 D) H0: μ = 0.12 vs. Ha: μ < 0.12 E) H0: μ = 0.12 vs. Ha: μ > 0.12

Question 2 (1 point) Saved What is the value of the test statistic for the appropriate test of significance? Keep 4 decimal places in intermediate calculations and report your final answer to 2 decimal places. Your Answer: Question 2 options: 2.11 Answer

Question 2 is a continuation of Q1.

math   Statistics-And-Probability   
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