Psychology 2810 Lecture 11: Lecture 11

• School: Western University
• Department: Psychology
• Course: Psychology 2810
• Professor: Tony Vernon

Document Summary

Single-sample t-test about example questions: a train company claims that the duration of one of its trips is 27 minutes, on average. The mean duration of these trips is 29 minutes, with a standard deviation of 4 minutes. As a regular passenger on this line you do not believe this claim and measure the actual duration of 15 trips. The mean duration of these trips is 29 minutes (sd = 3. 4 minutes). On an exam, these 10 students obtain a mean score of. Single-sample z-test about proportions: sometimes, the data we have do not involve discrete or continuous scores, but are proportions or percentages, we can create confidence intervals and analyze data such as this through a z-test. Single-sample z-test about proportions example questions: a poll of a representative random sample of 500 people found that 320 supported a particular candidate for a political office.