claim: most adults would erase all of their personal information online if they could. a software firm survey of 581 randomly selected adults showed 59% of them would erase all of their personal information online if they could. find the value of the test statistic.
let us assume most means greater than 50%.
Test statistic = 4.34
Ho: P=0.5, H_{1}: P > 0.5
p=0.59, n=581
Hypothesis test for proportion vs hypothesized value |
||||
Observed |
Hypothesized |
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0.59 |
0.5 |
p (as decimal) |
||
343/581 |
291/581 |
p (as fraction) |
||
342.79 |
290.5 |
X |
||
581 |
581 |
n |
||
0.0207 |
std. error |
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4.3387 |
z |
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