Question: Suppose you see an advertisement for a new version of the iPhone that claims that it is less complex than older versions and allows you
Suppose you see an advertisement for a new version of the iPhone that claims that it is less complex than older versions and allows you to complete tasks more quickly than the older versions. The ad claims that they asked a large national sample to perform three tasks (texting a message, finding a good sushi restaurant in San Francisco, and finding the phone number for the closest Starbucks) on an older iPhone and it took an average of 3.5 minutes to complete the tasks, while a group who used the brand-new and simpler version of the iPhone completed the tasks much faster. You decide to test the ad's claim with 20 students at your school. After having students complete the same three tasks on the new iPhone you compare the times (in minutes) for the students to the national average. The following output results:
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In addition, you compute the effect size and find eta squared = .344.
1. Write up a Results section following the format your professor wants (e.g., APA).
2. Write up a Discussion section in which you interpret the results, explain how they fit or do not fit with Ziefle and Bay's (2005) study, and note limitations of the study or alternative explanations for results, and then suggest future research to address the limitations or examine the possible explanations.
OneSample Statistics Mean Std. Deviation Std. Error Mean Time for Tasks 20 3.1600 68472 15311 Test Value 3.5 df Sig. (2 tailed) Mean 95% Confidence Interval of the Difference Lower Time for Tasks 2.221 19 039 .34000 6605 .0195
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