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.

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

the answer is a

step-by-step explanation: