Font Paragraph Styles Editing MODULE 5 - Hypothesis Teats for a Population Mean - Lab AEC 505 - Statistical Methods in Agriculture Instructor: Dr. Jose Lopez In 2002, the mean pl level of the rain in the Columbia River Gorge, Washington, was 527. A biologist wonders if the acidity of rain has changed. From a random sample of 16 rain dates in from the Equation Tools Design tab to type your formula, Note: The roman letters from 2007, she obtains the following data: your keyboard, such as for s or p, also work when typing your formula in equation mode (Points: 10) 5.11 5.70 5.27 5.59 4.98 5 13 549 4 81 6) Use the insert equation button from Microsoft Word to type the procedure for calculating the 5.23 5 16 5.58 5.86 test statistic. Assume o = 0.27. (Points: 20) 5.20 5 54 5.34 5:39 7) What is your final answer for the test statistic? (Points: 10) Source: National Atmospheric Deposition Program 8) What is (are) the critical value(s) for this hypothesis test? Use a = 0,01 significance level. 1) Use Microsoft Excel to draw a boxplot of the pH level of the rain data. Copy and paste the (Points: 10) boxplot from your Microsoft Excel document to this Word document (Points: 10) 9) Does the simple evidence suggest that the acidity of rain has changed? State the correct 2) Use your boxplot and the summary table below to write a paragraph assessing the shape of conclusion ( There is sufficient evidence at the m = 0.01 significance level to support..."or the distribution of the pH level of the rain data. Is the shape of the sample distribution very "There is NOT sufficient evidence at the a = 0.01 significance level to support.."). Make left skewed, very right skewed, or fairly normal? Make sure you fully justify your answer if sure you state the conclusion in terms of Hi. (Points: 10) you want to receive full credit in this question (Points: 10) Statistics PH level Mean Median 3) List the conditions for testing hypotheses regarding the population mean. Are the conditions for hypothesis testing satisfied? Make sure you explain why. (Points: 10) 4) A biologist believes the acidity of rain has changed from the 2002 level of 5.27. (Points: 10) i State the null and alternative hypotheses for the population mean in words. li. State the null and alternative hypotheses for the population mean using the mathematical notation 5) Uze the insert equation button from Microsoft Word to type the formula(s) for calculating the test statistic. Assume o is known