Chrome File Edit View History Bookmarks Profiles Tab Window Help Mon Apr 22 9:26 → C Frequently Asked Questions: x WHW 13-STAT 2500, Spring x G During the first 13 weeks of x Q Do graduate professors roun x webassign.net/web/Student/Assignment-Responses/submit?pos=2&dep=33636056&tags=autosave #question4342953_2 You may need to use the appropriate technology to answer this question. ☆ During the first 13 weeks of the television season, the Saturday evening 8 p.m. to 9 p.m. audience proportions were recorded as ABC 30%, CBS 27%, NBC 26%, and independents 17%. A sample of 300 homes two weeks after a Saturday night schedule revision yielded the following viewing audience data: ABC 96 homes, CBS 69 homes, NBC 90 homes, and independents 45 homes. Test with a 0.05 to determine whether the viewing audience proportions changed. State the null and alternative hypotheses. Ho: PABC 0.30, PCBs 0.27, PNBC H.: The proportions are not PABC O Ho: The proportions are not PABC H: PABC = 0.30, PCBs 0.27, PNBC' OH PABC 0.30, PCBS + 0.27, PNBC H₂ PABC -0.30, PCBS O Ho PABC 0.30, PCBS H PABC 0.30, PCBs 0.26, PIND 0.17 0.30, PCBS =0.27, PNBC 0.30, PCBs 0.27, PNBC 0.26, PIND 0.17 *0.26, PIND * 0.17 -0.27, PNBC 0.27, PNBC 0.26, PIND = 0.17 0.26, PIND =0.17 . 0.27, PNBC * 0.26, PIND * 0.17 0.26, PIND = 0.17. 0.26, PIND = 0.17. SC Find the value of the test statistic. (Round your answer to three decimal places.) × Find the p-value. (Round your answer to four decimal places.) p-value= State your conclusion. O Reject Ho. There has not been a significant change in the viewing audience proportions. O Do not reject Ho. There has been a significant change in the viewing audience proportions. Do not reject Ho. There has not been a significant change in the viewing audience proportions. O Reject Ho. There has been a significant change in the viewing audience proportions. Q A Z 2 # #3 3 80 F3 $ 4 FA W MacBook Air G 8 cell P F7 FR 19 FI % & 5 6 7 8 W E R T Y U S D X C H F V - O P G H J K L B N M V- V Chrome File Edit View History esc Frequently Asked Questions X Bookmarks Profiles Tab Window Help HW 13 STAT 2500, Spring: x G During the first 13 weeks of X Q Do graduate professors roun x + Mon Apr 22 9:26 AM webassign.net/web/Student/Assignment-Responses/submit?pos=2&dep=33636056&tags=autosave #question4342953_2 The National Highway Traffic Safety Administration reported the percentage of traffic accidents occurring each day of the week. Assume that a sample of 420 accidents provided the following data. Sunday Monday Tuesday Wednesday Thursday Friday Saturday 66 50 52 47 56 69 80 (a) Conduct a hypothesis test to determine if the proportion of traffic accidents is the same for each day of the week. Use a 0.05 level of significance. State the null and alternative hypotheses. Ho Psun Pмon PTue Pwed PThu-PFri Psat H: Not all proportions are equal. # O Ho: Psun PMon Prue *Pwed *PThu *PFri * Psat H: All proportions are equal. O Ho: Not all proportions are equal. Ha PSun *PMon *PTue * Pwed *PThu*PFri * Psat O Ho: Not all proportions are equal. Ha: Psun PMon Prue Pwed PThu - PFri - Psat Find the value of the test statistic. (Round your answer to three decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value= State your conclusion. O Reject Ho. We conclude that the proportion of traffic accidents is the same for each day of the week. O Do not reject Ho. We conclude that the proportion of traffic accidents is not the same for each day of the week. @ # 3 80 F3 a MacBook Air & $ % 4 5 6 7 8 Q W E R T Y U 411 90 FO F10 *11 112 - 0 A S D F G H J K L Z x H V C V B N M H P - . V command 13 J