Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 522 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.

6.3972

Step-by-step explanation:

This is a normal distribution problem.

-We claim that most adults are more likely to erase their data;

-The test statistic for a stated hypothesis  for proportions is given by the formula:

Given the size of the random sample is 522 and that 62% of them are susceptible to erasing their data.

-Let be the sample proportion. The value of the test statistic :

Hence, the test statistic is z=6.3972

1 1/5

step-by-step explanation:

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!