Expected frequency fE (fo-fe)² ĴE 0 Explanation Part 2 Answer the following to summarize the test of the hypothesis that birthdays are equally likely during each season of the year. Use the 0.05 level of significance for the test. O 37.50 (a) Determine the type of test statistic to use. Type of test statistic: (Choose one) ▼ (b) Find the value of the test statistic. (Round your answer to two or more decimal places.) B 0.007 (c) Find the p-value. (Round your answer to three or more decimal places.) 37.50 (d) Can we reject the hypothesis that birthdays are equally likely during each season of the year? OYes O No Check EPIC 0.540 NEXT 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | A
Are birthdays "evenly distributed" throughout the year, or are they more common during some parts of the year than others? Owners of a children's toy store chain asked this question. Some data collected by the chain are summarized in the table below.
The data were obtained from a random sample of 150 people. The birthdate of each person was recorded, and each of these dates was placed into one of four categories: winter (December 21-March 20), spring (March 21-June 20), summer (June 21-September 20), and fall (September 21-December 20). The numbers in the first row of the table are the frequencies observed in the sample for these season categories. The numbers in the second row are the expected frequencies under the assumption that birthdays are equally likely during each season of the year. The bottom row of numbers gives the following value for each of the season categories.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images