Solve for the value of the z-test statististic, zcom
1.A school principal claims that 40% of grade 3 pupils stay in the playground after their classes. A survey among 500 grade 3 pupils revealed that 150 of them stay in the playground after their classes.
2. A certified public accountant (CPA) claims that more than 30% of all accountants advertise. A sample of 112 accountants in Metro Manila showed that 40 use some form of advertising.
3. The GSIS states that the 80% of its claims are settled within a month. A consumer group selected a random sample of 240 of the company’s claims to test this statement. It is found that 200 of the claims were settled within a month.
*pa answer po solution lang need ko plssssssss
1.A school principal claims that 40% of grade 3 pupils stay in the playground after their classes. A survey among 500 grade 3 pupils revealed that 150 of them stay in the playground after their classes.
2. A certified public accountant (CPA) claims that more than 30% of all accountants advertise. A sample of 112 accountants in Metro Manila showed that 40 use some form of advertising.
3. The GSIS states that the 80% of its claims are settled within a month. A consumer group selected a random sample of 240 of the company’s claims to test this statement. It is found that 200 of the claims were settled within a month.
*pa answer po solution lang need ko plssssssss
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may pic ba kayo niyan diko kasi alam yung z test