7 100%+ 11:04 Tue Mar 8 myleoonline.tamuc.edu In 2002, the mean PH level of the rain in the Columbia River Gorge, Washington, was 5.27. A biologist wonders if the acidity of rain has changed. From a random sample of 16 rain dates in 2007, she obtains the following data: 5.11 5.705.275.59 4.98 5.135.494.81 5.23 5.165.585.86 5.20 5.545.345.39 Source: National Atmospheric Deposition Program. 1 ) Use Microsoft Excel to draw a boxplot of the pH level of the rain data. Copy and paste the boxplot from your Microsoft Excel document to this Word document. (Points: 10) 2) Use your boxplot and the summary table below to write a paragraph assessing the shape of the distribution of the pH level of the rain data. Is the shape of the sample distribution very left skewed, very right skewed, or fairly normal? Make sure you fully justify your answer if you want to receive full credit in this question. (Points: 10) Statistics pH level Mean Median List the conditions for testing hypotheses regarding the population mean. Are the conditions for hypothesis testing satisfied? Make sure you explain why. (Points: 10) A biologist believes the acidity of rain has changed from the 2002 level of 5.27. (Points: 10)