In the article, the graph titled "losing steam" gives the real gdp growth rate in the united states for eight consecutive quarters. the growth rates are annualized, which means that the reported growth rate is the one that would occur over a year—if the rate of growth that occurred in the quarter continued for a full year. suppose that 3% growth is considered typical. over the period covered in the graph, how many quarters had real gdp growth rates over 3% (which would be better than normal growth rates)? choose one: a. three b. eight c. one d. two

Farmers know that driving heavy equipment on wet soil compresses the soil and injures future crops. here are data on the "penetrability" of the same type of soil at two levels of compression. penetrability is a measure of how much resistance plant roots will meet when they try to grow through the soil. compressed soil 2.85 2.66 3 2.82 2.76 2.81 2.78 3.08 2.94 2.86 3.08 2.82 2.78 2.98 3.00 2.78 2.96 2.90 3.18 3.16 intermediate soil 3.17 3.37 3.1 3.40 3.38 3.14 3.18 3.26 2.96 3.02 3.54 3.36 3.18 3.12 3.86 2.92 3.46 3.44 3.62 4.26 use the data, omitting the high outlier, to give a 95% confidence interval for the decrease in penetrability of compressed soil relative to intermediate soil. compute degrees of freedom using the conservative method. interval: to