To demonstrate flavor aversion learning (that is, learning todislike a flavor that is associated with becoming sick),researchers gave one group of laboratory rats an injection oflithium chloride immediately following consumption ofsaccharin-flavored water. Lithium chloride makes rats feel sick. Asecond control group was not made sick after drinking the flavoredwater. The next day, both groups were allowed to drinksaccharin-flavored water. The amounts consumed (in milliliters) forboth groups during this test are given below.
AmountConsumed
by Rats That Were
Made Sick (n = 4) | AmountConsumed
by Control Rats
(n = 4) |
|---|
| 2 | 7 |
| 4 | 13 |
| 5 | 11 |
| 3 | 8 |
(a) Test whether or not consumption of saccharin-flavored waterdiffered between groups using a 0.05 level of significance. Statethe value of the test statistic. (Round your answer to threedecimal places.)
State the decision to retain or reject the null hypothesis.
Retain the null hypothesis.Reject the nullhypothesis.   Â
(b) Compute effect size using eta-squared (η2).(Round your answer to two decimal places.)
η2 =
