Presidential Poll. A research group suspects that less than 47% of Americans support the Republican presidential...

Transcribed Image Text:

Presidential Poll. A research group suspects that less than 47% of Americans support the Republican presidential candidate. To test this claim, they randomly call Americans until they get 1000 responses. Of the 1000 people who responded, 439 of them say they support the Republican presidential candidate. Test the research group's suspicion at a 5% level of significance. (a) Select the correct null and alternative hypotheses. O Ho: p = 0.47 Ha: p < 0.47 O Ho: p = 0.439 Ha: p < 0.439 Ho: p = 0.47 Ha: p = 0.47 O Ho: p = 0.47 Ha: p > 0.47 O Ho: p = 0.439 Ha: p > 0.439 O Ho: p=0.439 Ha: p = 0.439 (b) Find the p-value (round to four decimal places). (c) Write the final conclusion using everyday language. There is not sufficient evidence to support the group's suspicion O There is sufficient evidence to reject the group's suspicion. O There is not sufficient evidence to reject the group's suspicion. O There is sufficient evidence to support the group's suspicion. (d) What are some t Presidential Poll. A research group suspects that less than 47% of Americans support the Republican presidential candidate. To test this claim, they randomly call Americans until they get 1000 responses. Of the 1000 people who responded, 439 of them say they support the Republican presidential candidate. Test the research group's suspicion at a 5% level of significance. (a) Select the correct null and alternative hypotheses. O Ho: p = 0.47 Ha: p < 0.47 O Ho: p = 0.439 Ha: p < 0.439 Ho: p = 0.47 Ha: p = 0.47 O Ho: p = 0.47 Ha: p > 0.47 O Ho: p = 0.439 Ha: p > 0.439 O Ho: p=0.439 Ha: p = 0.439 (b) Find the p-value (round to four decimal places). (c) Write the final conclusion using everyday language. There is not sufficient evidence to support the group's suspicion O There is sufficient evidence to reject the group's suspicion. O There is not sufficient evidence to reject the group's suspicion. O There is sufficient evidence to support the group's suspicion. (d) What are some t