22
(Choose 1 answer)
(See picture)
(round to 4 decimal places).
A. None of the others
B. 20.1143 and df=37
C. 20.1143 and df=35
D. 41.00 and d.f f=2E
E. 9.322 and d.f = 19
You need to test whether the average mealtime spending of American tourists (population 1) is greater than that of British tourists (population 2). Based on samples of 20 American tourists (n_{1}=20) and 17 British tourists (n_{2}=17) you calculated the following statistics: x_{1}=45; s_{1}=4; \overline{x_{2}}=48; s_{2}=5 What is the value of the pooled-variance and how many degrees of freedom for the T test?
