QUESTION 11 ' 24 points Save Answer In 2014, the proportion of individuals living in Chile who said they were happy was 0.847. In a 2021 random sample of 1,150 Chilean adults, 949 said they were happy. Has the proportion of individuals in Chile who say they are happy gone down since the 2014 survey? Conduct the appropriate hypothesis test byanswering the questions below. Use alpha = 0.05. Round all numeric answers to 3 decimal places. (a) What is your null hypothesis? (3 points) (b) What is your alternative hypothesis? (3 points) (c) If the null hypothesis is true, what is the mean of the sampling distribution for p-hat? (3 points) (d) If the null hypothesis is ture, what is the standard deviation of the sampling distribution for phat? (3 points) (e) What is the z-statistic for this hypothesis test? (3 points) (f) What is the P-value for this hypothesis test? (3 points) (9) Do you reject or fail to reject the null hypothesis? (3 points) (h) Write a one-sentence conclusion for this hypothesis test based on your results. (3 points) For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). B I L1 8- Paragraph v Arial v 10pt V EEVEEEV AV'V'L'x I .Q m P O WORDS POWERED BY TINY