# Question: Absent from school Following are the total numbers of absences

Absent from school: Following are the total numbers of absences on each day of the week for the academic year 2008– 2009 at a Montana elementary school.

Test the null hypothesis that absences are equally likely to occur on any day of the week. Use the. = 0.05 level of significance.

In a hypothetical study, four hospitals were compared with regard to the outcome of a particular type of surgery. For each patient at each hospital, the outcome was classified as Substantial improvement, Some improvement, or No improvement. The results are presented in the following contingency table.

Test the null hypothesis that absences are equally likely to occur on any day of the week. Use the. = 0.05 level of significance.

In a hypothetical study, four hospitals were compared with regard to the outcome of a particular type of surgery. For each patient at each hospital, the outcome was classified as Substantial improvement, Some improvement, or No improvement. The results are presented in the following contingency table.

## Relevant Questions

Expected frequencies: Compute the expected frequencies. A hypothetical sample of 200 families, each with four children, was selected, and the number of boys was recorded for each. The results are presented in the following ...Compute the expected frequencies under the null hypothesis of homogeneity. In a hypothetical study, four hospitals were compared with regard to the outcome of a particular type of surgery. For each patient at each hospital, ...Use the data in Table 12.11 to test the null hypothesis that gender is independent of department. Show that this hypothesis is rejected at the. = 0.01 level. We conclude that department is associated with both gender and ...Percentage of variation: The following MINITAB output presents a multiple regression equation. a. What percentage of the variation in the response is explained by the multiple regression equation? b. What percentage of the ...The following 11-84 Plus display presents the results of a test of the null hypothesis Ho: β1 = 0. a. What is the alternate hypothesis? b. What is the value of the test statistic? c. How many degrees of freedom are ...Post your question