A simple random sample of 120 15-year-old boys from one city is obtained and their weights, in pounds, are recorded. Test the claim that these sample weights come from a population with a mean equal to 147 pounds. Assume that the standard deviation of the weights of all 15-year-old boys in the city is known to be 16.7 pounds. How many populations? 01 O2 What is the parameter? O Proportion O Standard Deviation Mean O Variance Diff

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A simple random sample of 120 15-year-old boys from one city is obtained and their weights, in pounds, are
recorded. Test the claim that these sample weights come from a population with a mean equal to 147
pounds. Assume that the standard deviation of the weights of all 15-year-old boys in the city is known to be
16.7 pounds.
How many populations?
01
What is the parameter?
O Proportion
Standard Deviation
Mean
O Variance
O Difference between Means
Transcribed Image Text:A simple random sample of 120 15-year-old boys from one city is obtained and their weights, in pounds, are recorded. Test the claim that these sample weights come from a population with a mean equal to 147 pounds. Assume that the standard deviation of the weights of all 15-year-old boys in the city is known to be 16.7 pounds. How many populations? 01 What is the parameter? O Proportion Standard Deviation Mean O Variance O Difference between Means
What is the test statistic?
p - p
(ī1 – T2) – (H1 – µ2)
(F1 – #2) – (41
Ot =
(P1 - P2) – (P1 – p2)
O2
Ota
OF
(n – 1)? . s2
(T1 – T2) – (41 – 42)
Ot =
|一
IN
||
||
||
Transcribed Image Text:What is the test statistic? p - p (ī1 – T2) – (H1 – µ2) (F1 – #2) – (41 Ot = (P1 - P2) – (P1 – p2) O2 Ota OF (n – 1)? . s2 (T1 – T2) – (41 – 42) Ot = |一 IN || || ||
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