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A company produces mood music, and wants to study the music and whther it substantially helps peoples mood.  the first intern decides to survey adults, asking them if they are feeling cheerful at the moment. 280 adults who do not listen to the mood music are asked if they are feeling cheerful at the moment. 112 say they are. the intern then asks 172 adults who listen to mood music regurlarly of they are feeling cheerful: 87 say they are. The intern will only claim that the music enhances peoples mood if he can state with 95% certainty that the % of adult mood music listeners who feel cherful beats thes rest of the adult population more than 4% a) Write h0, Ha and a b) write the values of P no music and P music c)run a z test what is the p-value round to the nearest 0.0001

A company produces mood music, and wants to study the music and whther it substantially helps peoples mood.  the first intern decides to survey adults, asking them if they are feeling cheerful at the moment. 280 adults who do not listen to the mood music are asked if they are feeling cheerful at the moment. 112 say they are. the intern then asks 172 adults who listen to mood music regurlarly of they are feeling cheerful: 87 say they are. The intern will only claim that the music enhances peoples mood if he can state with 95% certainty that the % of adult mood music listeners who feel cherful beats thes rest of the adult population more than 4% a) Write h0, Ha and a b) write the values of P no music and P music c)run a z test what is the p-value round to the nearest 0.0001

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 27PPS
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A company produces mood music, and wants to study the music and whther it substantially helps peoples mood. 

the first intern decides to survey adults, asking them if they are feeling cheerful at the moment. 280 adults who do not listen to the mood music are asked if they are feeling cheerful at the moment. 112 say they are. the intern then asks 172 adults who listen to mood music regurlarly of they are feeling cheerful: 87 say they are. The intern will only claim that the music enhances peoples mood if he can state with 95% certainty that the % of adult mood music listeners who feel cherful beats thes rest of the adult population more than 4%

a) Write h0, Ha and a

b) write the values of P no music and P music

c)run a z test what is the p-value round to the nearest 0.0001

Part 2: A company produces mood music, and wants to study the music and whether it "substantially" helps people's mood. The first intern decides to survey adults, asking them if they are feeling cheerful at the moment. 280 adults who do not listen to the mood music are asked if they are feeling cheerful at the moment. 112 say they are. The intern then asks 172 adults who listen to mood music regularly if they are feeling cheerful; 87 say they are. The intern will only claim that the music enhances people's mood if he can state with 95% certainty that the % of adult mood-music listeners who feel cheerful beats the rest of the adult population more than 4%. a)Write Ho, HA, and a.
Transcribed Image Text:Part 2: A company produces mood music, and wants to study the music and whether it "substantially" helps people's mood. The first intern decides to survey adults, asking them if they are feeling cheerful at the moment. 280 adults who do not listen to the mood music are asked if they are feeling cheerful at the moment. 112 say they are. The intern then asks 172 adults who listen to mood music regularly if they are feeling cheerful; 87 say they are. The intern will only claim that the music enhances people's mood if he can state with 95% certainty that the % of adult mood-music listeners who feel cheerful beats the rest of the adult population more than 4%. a)Write Ho, HA, and a.
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