STATS 250 Lecture Notes - Lecture 16: Null Hypothesis, American Automobile Association, Test Statistic

• School: U of M
• Department: Statistics
• Course: STATS 250
• Professor: Brenda Gunderson

Document Summary

Stats 250: introduction to statistics - lecture 18: chi-square analysis continued. For a genetics experiment in the cross breeding of peas, mendel obtained the following data in a sample from the second generation of seeds resulting from crossing yellow round peas and green wrinkled peas. Do these data support the theory that these four types should occur with probabilities 9/16, 3/16, H0: p1 = 9/16, p2 = 3/16, p3 = 3/16, p4 = 1/16 vs. ha: not h0. Therefore, we fail to reject h0 and conclude the results are statistically insignificant. The aaa travel agency would like to assess if the distribution of desired vacation place has changed from the model of 3 years ago. A random sample of 928 adults were polled by the polling company ipsos during this past mid may. Give the null hypothesis to test if there has been a significant change in the distribution of desired vacation place from three years ago.