Hypothesis Testing - What is the average number of days missed by each student?
School A states the average number of days missed by each student is 4.0. Office personnel randomly sampled a portion of their attendance records to determine if this claim was accurate. For the previous year, the following data was obtained from the sample group, regarding absences for that year: 4, 4, 3, 2, 6, 8, 7, 1, 9, 3, 1, and 6.At the .05 level of significance, is there convincing, evidence that the number of absences per student has increased?
Solution Preview
Hypothesis Testing- Compute the statistical test using the t test and decide what to do with the null.
School A states the average number of days missed by each student is 4.0. Office personnel randomly sampled a portion of their attendance records to determine if this claim was accurate. For the previous year, the following data was obtained from the sample group, regarding absences for that year: 4, 4, 3, 2, 6, 8, 7, 1, 9, 3, 1, and 6.At the .05 level of significance, is there convincing, evidence that the number of absences per student has ...
Solution Summary
The solution provides a test of hypothesis in an attached Excel file.
... step method for the calculation of testing of the ... Critical Value 9.21034037 Chi-Square Test Statistic 10.7377778 p -Value 0.00465931 Reject the null hypothesis. ...
... above, applying the five-step hypothesis testing procedures ... of calls>40 Under the null Hypothesis test statistics is ... we accept the null hypothesis and conclude ...
... Given those hypotheses, what would constitute a type I or ... This enables statistical testing in a wide ... Alternative Hypothesis H1: There is significant difference ...
... regression, correlation, frequency distribution, hypothesis testing, and statistical ... this help explain the average lead time ... The students t test suggests that ...
... d. x2 test for independence in a two-way contingency table. ... We are interested in testing whether the average number of hours spent watching TV and the ...
... of groups; analysis becomes cognitively difficult somewhere in the neighborhood of a number of different tests. ...Test with α = .05 ... The null hypothesis tested is. ...
... formulation of null and alternate hypotheses, selection of ... Which hypothesis testing error(s) do you have direct ... [1.5%] TWO SAMPLE HYPOTHESIS TEST FOR PAIRED ...
Hypothesis testing and level of measurement. ... 05 we would Comfortably do not reject the null hypothesis Comfortably reject the ... t Test for Hypothesis of the Mean. ...
... use the chi-square statistic to formally test for a ... As before, the first step in hypothesis testing is to state the null and alternate Solution hypotheses. ...
