a difference between the population mean yields of tomato plants grown with Add1 and the population mean yields of tomato plants grown with Add2? Perform a two-tailed test. Then complete the parts below. Carry intermediate calculations to three or more decimal places. (If necessary, you can refer to a list of formulas.) (to) Formulate the null hypothesish and the alternative hypothesish 1 h : 0 p S 1 h : (b) Determine which type of test statistic to use. you Degrees of freedom: = (c) Find the value of the test statistic. (Round to three or more decimal places.) An engineer who works for a large agribusiness has developed two types of soil additives that he calls Add1 and Add2. The engineer wants to test if there is any difference between the average yield of tomato plants grown with these two additives. The engineer studies a random sample of 12tomato plants grown with Add1 and a random sample of 13tomato plants grown with Add2. (These samples are chosen independently.) When the plants are harvested, count their yields. These data are shown in the table. Yields (in number of tomatoes) Add1 162, 168, 175, 167, 181, 180, 187, 171, 167, 191, 166, 172 Add2 Send data to calculator 178, 185, 185, 227, 145, 202, 218, 211, 156, 164, 173, 194, 166 Send data to Excel Assume that the two populations of returns follow approximately a normal distribution. Can the engineer conclude, at the significance level of 0.10, that there is a difference between the population mean yields of tomato plants grown with Add1 and the population mean yields of tomato plants grown with Add2? Perform a two-tailed test. Then complete the parts below. Carry intermediate calculations to three or more decimal places. (If necessary, you can refer to a list of formulas.) (to) Formulate the null hypothesish and the alternative hypothesish 1" : (b) ho h 1 : 0 Determine which type of test statistic to use. VOU | S P Degrees of freedom: =