Let D = {−48, −14, −8, 0, 1, 3, 16, 23, 26, 32, 36}. Determine which of the following statements are true and which are false. For each statement that is true, enter TRUE. For each statement that is false, enter a value of x that could be used to show the statement is false. (a) ∀x ∈ D, if x is odd then x > 0. true (b) ∀x ∈ D, if x is less than 0 then x is even. true (c) ∀x ∈ D, if x is even then x ≤ 0. ƒalse (d) ∀x ∈ D, if the ones digit of x is 2, then the tens digit is 3 or 4. true (e) ∀x ∈ D, if the ones digit of x is 6, then the tens digit is 1 or 2. ƒalse

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