Answer Happy

In a study of air pollution, the following levels of CO2 emissions were recorded for 30 samples of air chosen randomly at a certain location in Adelaide. The regulations state the air pollution levels of CO2 should not exceed 2mg The analyst conducted an analysis on the data and computed the sample mean to be 16 mg. It is known that the standard deviation is 0.8mg. Will this sample provide sufficient evidence to the analyst that the pollution levels will satisfy regulations at a 5% significance level? State the problem of the interest in words and set up the question by including all relevant quantities A- B I U S X₂ *² 9. 2 C MS S X Formulate the problem in terms of the hypothesis. Provide the Nub, Alternative hypotheses and the level of significance The format for your answer should be: Ho HAL @= B I LL MT 49 X A
Before calculating the test statistic, what procedure and theorems should we apply to ensure we use the correct testing method? Give a one sentence reason as well. 9- B 20 BI A- B I US X₂ RO SX Calculate the test statistic (2 decimals) Answer by using the p-value approach, indicate the decision and where on the diagram the decision is located from the following options: Far Left, Middle or Far Right B I U X₁₂ 60 X # 5 C
What is the conclusion from your hypothesis test? You must use the correct wording here from the lectures A- B I US X₂ x² 9- p ( x #0 * 轉 3 B Q 2 P I #