Question

​Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 605 randomly selected adults showed that 64​% of them would erase all of their personal information online if they could. Find the value of the test statistic.

The value of the test statistic is ???.

​(Round to two decimal places as​ needed.)

Answer 1

Solution :

= 0.64

n = 605

P₀ = 0.5

1 - P₀ = 0.5

Test statistic = z

= - P₀ / [P_{0 *} (1 - P₀ ) / n]

= 0.64 - 0.5 / [(0.5 * 0.5) / 605]

= 0.14

Test statistic = 0.14