mg Calcium is essential to tree growth. In 1990, the concentration of calcium in precipitation in Chautauqua, New York, was 0.11 milligram per liter A random sample of 8 precipitation dates in 2018...

A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot does not show any outliers. Does the sample evidence suggest that calcium concentrations have changed since

Use the

level of significance.

Extracted text: mg Calcium is essential to tree growth. In 1990, the concentration of calcium in precipitation in Chautauqua, New York, was 0.11 milligram per liter A random sample of 8 precipitation dates in 2018 results in the following data: 0.234 0.065 0.262 0.120 0.108 0.070 0.183 0.313 %D A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot does not show any outliers. Does the sample evidence suggest that calcium concentrations have changed since 1990? Use the a = 0.01 level of significance. What are the null and alternative hypotheses? Ho: H1: (Type integers or decimals. Do not round.) Find the test statistic. to |(Round to two decimal places as needed.) Find the P-value. P-value = (Round to three decimal places as needed.) Is there sufficient evidence that calcium concentrations have changed since 1990? Since P-value a, the null hypothesis and conclude that there sufficient evidence that the calcium level in rainwater has changed.