The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.30, and the sample statistics
include nequals1491 subjects with 462 saying that they smoked a cigarette in the past week. Find the value of the test statistic.
1 answer:
Answer: 0.84
Step-by-step explanation:
let p be the population proportion of adults who smoked a cigarette in the past week.
As per given , we have

Sample size : n= 1491
The sample proportion of adults smoked a cigarette= 
The test statistic for proportion is given by :-

Substitute all the values , we get

Hence, the value of the test statistic = 0.84
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