FILE A Washington, D.C., “think tank" announces the typical teenager sent 67 text messages per day in 2017. To update that estimate, you phone a sample of 12 teenagers and ask them how many text messages they sent the previous day. Their responses were: 51 175 47 49 44 54 145 203 21 59 42 100 At the .05 level, can you conclude that the mean number is greater than 67? ESsir mate the p-value and describe what it tells you,

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19. FILE A Washington, D.C., "think tank" announces the typical teenager sent 67 text
messages per day in 2017. To update that estimate, you phone a sample of 12
teenagers and ask them how many text messages they sent the previous day. Their
responses were:
51
175
47
49
44
54
145
203
21
59
42
100
At the .05 level, can you conclude that the mean number is greater than 67? E"
mate the p-value and describe what it tells you.
Transcribed Image Text:19. FILE A Washington, D.C., "think tank" announces the typical teenager sent 67 text messages per day in 2017. To update that estimate, you phone a sample of 12 teenagers and ask them how many text messages they sent the previous day. Their responses were: 51 175 47 49 44 54 145 203 21 59 42 100 At the .05 level, can you conclude that the mean number is greater than 67? E" mate the p-value and describe what it tells you.
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