911 released the following statistics for the numbers of calls on different days

Question

911 released the following statistics for the numbers of calls on different days of the week. Using a 0.01 Significance Level test the claim that different days of the week have the same frequency of 911 calls, and answer the questions: Monday Tuesday Wednesday Thursday Friday Saturday Sunday 173 210 236 154 208 224 246 What is the Null hypotheses? What is the Alternate Hypothesis? The Test Statistic is The Critical Value is? Resulting in The P-Value is? Resulting in The conclusion of the analysis is? the Null hypothesis because the Null hypothesis because

Explanation / Answer

null hypothesis:differnt day of week has same frequency of 911 calls

alternate hypothesis: at least one day has different frequency of 911 calls

applying chi square goodness of fit test:

test statistic =31.9628

critical value =16.8119

resulting in rejection of the null hypothesis because test statisticis higher than critical value

p value is 0.0000

resulting in rejection of the null hypothesis because p vlaue is less than 0.01 level

conclusion: at least one day has different frequency of 911 calls

observed Expected Chi square category Probability O E=total*p =(O-E)^2/E mon 1/7 208.000 207.29 0.00 tue 1/7 224.000 207.29 1.35 wed 1/7 246.000 207.29 7.23 thu 1/7 173.000 207.29 5.67 fri 1/7 210.000 207.29 0.04 sat 1/7 236.000 207.29 3.98 sun 1/7 154.000 207.29 13.70 1 1451 1451 31.96

Related Questions

Navigate

• Browse (All)
• Browse 9
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.