In 1974, Loftus and Palmer conducted a classic study exploring how language affects eyewitness testimony. They had two groups of participants view an automobile accident and were asked questions about the video. One group was asked "About how fast were the cars going when theysmashedintoeach other?" Another group was asked "About how fast were the cars going when theyhiteach other?" They are then asked to estimate the speed at which the car was going.

Now imagine you decide to replicate the study today using students from a local University. 37 students hear the verbsmashed intoand 34 students hear the verbhit.

*This is based on an independent sample t test!*

Mean of the control group: 43

Standard deviation of control group: 7

Mean of experimental group: 29

standard deviation of experimental group: 5

Using a one- tailed test with an alpha level of .01, answer the following questions-

Please show all your work and include explanation for each question for thumbs up!

1. What are the null and research hypothesis for the study? Explain in words and use symbolic notation please.
2. What are the characteristics of the comparison distribution? (be sure to follow and calculate each step)
3. What are the critical values/ cut offs?
4. Calculate the test statistic.
5. Make a decision.

Thanks