Mathematics, 20.07.2021 21:00, ganggang6223
After a large fund drive to help the Boston City Library, the following information was obtained from a random sample of contributors to the library fund. Using a 1% level of significance, test the claim that the amount contributed to the library fund is independent of ethnic group.
Number of People Making Contribution
Ethnic Group $1-50 $51-100 $101-150 $151-200 Over $200 Row Total
A 77 63 54 39 18 251
B 90 48 76 26 24 264
C 73 67 59 37 30 266
D 108 82 70 50 30 340
Column Total 348 260 259 152 102 1121
Required:
a. What is the level of significance?
b. Find the value of the chi-square statistic for the sample.
c. Find or estimate the P-value of the sample test statistic.
d. Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis of independence?
Answers: 2
Mathematics, 21.06.2019 13:00, kamayabrown668
The number of electoral votes each state is assigned is determined by the size of its population every ten years. the chart shows the number of electoral votes california was assigned each decade of the past century. what is the 3rd quartile of the data?
Answers: 1
Mathematics, 22.06.2019 07:00, Turtles8276
After several softball games jenni has 12 hits and five walks what is the ratio of hits and walks select all correct ratios
Answers: 2
After a large fund drive to help the Boston City Library, the following information was obtained fro...
Computers and Technology, 17.12.2021 01:00
Social Studies, 17.12.2021 01:00
Chemistry, 17.12.2021 01:00
Social Studies, 17.12.2021 01:00
Mathematics, 17.12.2021 01:00
Social Studies, 17.12.2021 01:00