Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 570570 randomly selected adults showed that 6262% of them would erase all of their personal information online if they could. Find the value of the test statistic.

Step-by-step explanation:

Data given and notation

n=570 represent the random sample taken

estimated proportion of adults with the characteristic

is the value that we want to test

represent the significance level

z would represent the statistic (variable of interest)

represent the p value (variable of interest)  

Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that true proportion is higher than 0.5.:  

Null hypothesis:  

Alternative hypothesis:  

When we conduct a proportion test we need to use the z statistic, and the is given by:  

(1)  

The One-Sample Proportion Test is used to assess whether a population proportion is significantly different from a hypothesized value .

Calculate the statistic  

Since we have all the info requires we can replace in formula (1) like this:  

, ; dcbsdkmnld

step-by-step explanation:

step-by-step explanation:

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