A poll found that 83% of American adults believed that there was a conspiracy in the death of President Kennedy. A later poll asked 1060 American adults if they believe there was a conspiracy in the assassination, and found that 869 believe there was a conspiracy. Do the data show that the proportion of Americans who believe in this conspiracy has decreased? Test at the 10% level. State the hypotheses. Ho: p?v Ha: p?v Calculate the test statistic. Round to four decimal places. Calculate the standardized test statistic. Round to three decimal places. = Find the p-value. Round to four decimal places. D-value= State your decision. O Since the p-value is less than .10, fail to reject Ho. O Since the p-value is greater than .10, reject Ho. O Since the p-value is greater than .10, fail to reject Ho. O Since the p-value is less than .10, reject Ho. Interpret the results. O At the 10% level of significance, there is enough evidence to show that the proportion of American adults who believe that there is a conspiracy in the death of President Kennedy is less than 83%, the value from the earlier poll. O At the 10% level of significance, there is not enough evidence to show that the proportion of American adults who believe that there is a conspiracy in the death of President Kennedy is not equal to 83%, the value from the earlier poll. O At the 10% level of significance, there is not enough evidence to show that the proportion of American adults who believe that there is a conspiracy in the death of President Kennedy is less than 83%, the value from the earlier poll. O At the 10% level of significance, there is enough evidence to show that the proportion of American adults who believe that there is a conspiracy in the death of President Kennedy is not equal to 83%, the value from the earlier poll. O At the 10% level of significance, there is not enough evidence to show that the proportion of American adults who believe that there is a conspiracy in the death of President Kennedy is more than 83%, the value from the earlier poll. O At the 10% level of significance, there is enough evidence to show that the proportion of American adults who believe that there is a conspiracy in the death of President Kennedy is more than 83%, the value from the earlier poll.

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.2: Introduction To Probability
Problem 52E
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A poll found that 83% of American adults believed that there was a conspiracy in the death of President
Kennedy. A later poll asked 1060 American adults if they believe there was a conspiracy in the
assassination, and found that 869 believe there was a conspiracy. Do the data show that the proportion of
Americans who believe in this conspiracy has decreased? Test at the 10% level.
State the hypotheses.
Ho: P ? ✓
Ha: P ? ✓
Calculate the test statistic. Round to four decimal places.
p =
Calculate the standardized test statistic. Round to three decimal places.
Z =
Find the p-value. Round to four decimal places.
p-value =
State your decision.
O Since the p-value is less than .10, fail to reject Ho.
O Since the p-value is greater than .10, reject Ho.
O Since the p-value is greater than .10, fail to reject Ho.
O Since the p-value is less than .10, reject Ho.
Interpret the results.
O At the 10% level of significance, there is enough evidence to show that the proportion of American
adults who believe that there is a conspiracy in the death of President Kennedy is less than 83%, the
value from the earlier poll.
O At the 10% level of significance, there is not enough evidence to show that the proportion of
American adults who believe that there is a conspiracy in the death of President Kennedy is not equal
to 83%, the value from the earlier poll.
O At the 10% level of significance, there is not enough evidence to show that the proportion of
American adults who believe that there is a conspiracy in the death of President Kennedy is less than
83%, the value from the earlier poll.
O At the 10% level of significance, there is enough evidence to show that the proportion of American
adults who believe that there is a conspiracy in the death of President Kennedy is not equal to 83%,
the value from the earlier poll.
O At the 10% level of significance, there is not enough evidence to show that the proportion of
American adults who believe that there is a conspiracy in the death of President Kennedy is more
than 83%, the value from the earlier poll.
O At the 10% level of significance, there is enough evidence to show that the proportion of American
adults who believe that there is a conspiracy in the death of President Kennedy is more than 83%, the
value from the earlier poll.
Transcribed Image Text:A poll found that 83% of American adults believed that there was a conspiracy in the death of President Kennedy. A later poll asked 1060 American adults if they believe there was a conspiracy in the assassination, and found that 869 believe there was a conspiracy. Do the data show that the proportion of Americans who believe in this conspiracy has decreased? Test at the 10% level. State the hypotheses. Ho: P ? ✓ Ha: P ? ✓ Calculate the test statistic. Round to four decimal places. p = Calculate the standardized test statistic. Round to three decimal places. Z = Find the p-value. Round to four decimal places. p-value = State your decision. O Since the p-value is less than .10, fail to reject Ho. O Since the p-value is greater than .10, reject Ho. O Since the p-value is greater than .10, fail to reject Ho. O Since the p-value is less than .10, reject Ho. Interpret the results. O At the 10% level of significance, there is enough evidence to show that the proportion of American adults who believe that there is a conspiracy in the death of President Kennedy is less than 83%, the value from the earlier poll. O At the 10% level of significance, there is not enough evidence to show that the proportion of American adults who believe that there is a conspiracy in the death of President Kennedy is not equal to 83%, the value from the earlier poll. O At the 10% level of significance, there is not enough evidence to show that the proportion of American adults who believe that there is a conspiracy in the death of President Kennedy is less than 83%, the value from the earlier poll. O At the 10% level of significance, there is enough evidence to show that the proportion of American adults who believe that there is a conspiracy in the death of President Kennedy is not equal to 83%, the value from the earlier poll. O At the 10% level of significance, there is not enough evidence to show that the proportion of American adults who believe that there is a conspiracy in the death of President Kennedy is more than 83%, the value from the earlier poll. O At the 10% level of significance, there is enough evidence to show that the proportion of American adults who believe that there is a conspiracy in the death of President Kennedy is more than 83%, the value from the earlier poll.
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