question archive Use the given probability value to determine whether the sample results could easily occur by? chance, then form a conclusion
Use the given probability value to determine whether the sample results could easily occur by? chance, then form a conclusion
Subject:StatisticsPrice: Bought3
Use the given probability value to determine whether the sample results
could easily occur by? chance, then form a conclusion.
A study on the enhancing effect of coffee on? long-term memory found that 35 participants given 200 mg of caffeine performed better on a memory test 24 hours later compared to the placebo group that received no caffeine.
a. There was a probability of 0.049 that the difference between the coffee group and the placebo group was due to chance. What do you? conclude?
b. A group given a higher dose of 300 mg performed better than the 200 mg? group, with a probability of 0.75 that this difference is due to chance. What do you? conclude?
