Thread: significance level

880 randomly chosen people surveyed. 493 of them admitted to chewing gum. If we use a signifagant level of 0.01, can we conclude that a majority of people chew gum?

test =.5" alt="H_0=.5" /> vs. >.5" alt="H_a>.5" />

the test statistic is

the rejection region is

Originally Posted by matheagle

test =.5" alt="H_0=.5" /> vs. >.5" alt="H_a>.5" />

the test statistic is

the rejection region is

I put into the formula:



is this correct and where do i go from here?

also, where do you use the info about the significance level being = 0.01

Originally Posted by mherr

I put into the formula:



is this correct and where do i go from here? Mr F says: Is z = 3.75 significant?

also, where do you use the info about the significance level being = 0.01 Mr F says: Well, if the significance level is 0.01, what's the value of ? You're expected to be able to look it up ....

Post #2 gives you the solution, all you have to do is fill in the details. How many lessons have you had on this material?

z.99 = 2.33