Question 13 0/8 pts 1 2 0 Details A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 9% margin of error at a 99% confidence level, what size of sample is needed? Give your answer in whole people. Calculator Check Answer. Question 14 0/2 pts 1 2 0 Details The p-value for a hypothesis test turns out to be 0.0245. At a 2% level of significance, what is the proper decision? O Reject Ho O Fail to reject Ho Calculator Check AnswerI Question 15 E W8 pts \"Cl 2 (3' Details You wish to test the following claim [Hall at a significance level ofo: = l].l]1. Ham: 2 81.5 Ha:_u 9E 81.13 You believe the population is normally distributed. but you do not know the Standard deviation. \"fou obtain a sample of size n = 19' with mean M = 7'51} and a Standard deviation of SD = 14.5. 1v'v'hat is the pvalue for this sample? [Report answer accurate to four decimal places.) pvalue =| I The p-value is... {:3- Iess than {or equal to} or Qgreater than or This pvalue leads to a decision to... {:3- reject the null {:3- accept the null (23- fail to reject the null As such, the final conclusion is that... {:3- There is sufficient evidence to warrant rejection of the claim that the population mean is not equal to 81.6. {:3- There is not sufficient evidence to warrant rejection ofthe claim that the population mean is not equal to 81.6. {:3- The sample data support the claim that the population mean is not equal to 81.6. {:3- There is not sufficient sample evidence to support the claim that the population mean is not equal to 81.15. Question Help: Elvideo C] Calculator Check Answer Question 16 0/8 pts ) 2 0 Details Based on the data shown below, calculate the correlation coefficient (to three decimal places) X y 4 8.72 5 8.85 6 9.68 7 7.61 8 7.04 9 9.17 10 8 11 10.13 Calculator Check