You recently sent out a survey to determine if the percentage of adults who use social media has changed from S5%, which was the percentage of adults who used social media five years ago. Of the 2564 people who responded to survey, 1770 stated that they currently use social media. a) Use the data from this survey to construct a 98% confidence Interval estimate of the proportion of adults who use social media. Record the result below in the form of (#, #). Round your final answer to four decimal places. b) Can you conclude that the percentage of adults who use sdcial media has changed? Explain. O Yes, because the proportion of adults who used social media five years ago is inside of the confidence interval. O Yes, because the proportlon of adults who used soclal media flve years ago is not Inside the confidence interval. O No, because the proportion of adults who used social media five years ago is inside the confidence interval. O No, because the proportion of adults who used social media five years ago is not inside the confidence Interval. c) If it has changed, has it increased or decreased? O The percentage increased. O The percentage decreased. OWe cannot determine that the percentage has changed.

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You recently sent out a survey to determine if the percentage of adults who use social media has:
changed from SS%, which was the percentage of adults who used social media five years ago. Of the
2564 people who responded to survey, 1770 stated that they currently use social media.
a) Use the data from this survey to construct a 98% confidence interval estimate of the proportioA
of adults who use social media. Record the result below in the form of (#, #). Round your final
answer to four decimal places.
b) Can you conclude that the percentage of adults who use sdcial media has changed? Explain.
O Yes, because the proportion of adults who used social media five years ago is inside of the
confidence Interval.
O Yes, because the proportion of adults who used soclal media five years ago İs not inside the
confidence interval.
O No, because the proportion of adults who used social media five years ago is inside the
confidence interval.
O No, because the proportion of adults who used social media five years ago is not inside the
confidence interval,
c) If it has changed, has it increased or decreased?
O The percentage increased.
O The percentage decreased.
OWe cannot determine that the percentage has changed.
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Transcribed Image Text:You recently sent out a survey to determine if the percentage of adults who use social media has: changed from SS%, which was the percentage of adults who used social media five years ago. Of the 2564 people who responded to survey, 1770 stated that they currently use social media. a) Use the data from this survey to construct a 98% confidence interval estimate of the proportioA of adults who use social media. Record the result below in the form of (#, #). Round your final answer to four decimal places. b) Can you conclude that the percentage of adults who use sdcial media has changed? Explain. O Yes, because the proportion of adults who used social media five years ago is inside of the confidence Interval. O Yes, because the proportion of adults who used soclal media five years ago İs not inside the confidence interval. O No, because the proportion of adults who used social media five years ago is inside the confidence interval. O No, because the proportion of adults who used social media five years ago is not inside the confidence interval, c) If it has changed, has it increased or decreased? O The percentage increased. O The percentage decreased. OWe cannot determine that the percentage has changed. esc F1 F3 F4 DII F6 17 %23 2$ & 1 2 3 4. 7 Q W E R tab Y А S caps lock F G shift C V B control * 00
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