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Find the value of the test statistic z using z = p ^ - p pq n
A claim is made that the proportion of children who play sports is less than 0.5, and the sample statistics include n = 1320 subjects with 30% saying that they play a sport.

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Answer:

The value of the test statistic is z= -14.53

Step-by-step explanation:

Pcap= 0.3 ,p=0.5 ,q= 1-0.5= 0.5, n=1320

Z= (pcap- p) / √(p×q)/n

Z=( 0.3- 0.5) / √ (0.5 × 0.5)/1320

Z= -0.2/(√0.0001894)

Z= -14.53

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