Hypothesis Testing

What is the "assumed to be true" value?

• Ho

• Ha

• He

• Hi

(U-L) / 2

• Standard deviation

• Standard error

• Confidence interval

• Margin of error

The probability that the statistic you found, or worse, could happen

• p-hat

• alpha

• p-value

• n

The level of significance

• Alpha

• Beta

• Delta

• Chad

When the p-value is low...

• Can't deny!

• Accept Ha

• Reject that ho

• the CI widens

If our p-value is 0.01 and our level of significance is 5%, what should we do?

• Accept Ha

• Reject Ho

• Fail to reject Ho

• Accept Ho

Ho: The dog will not bite someone

Ha: The dog will bite someone

If we assume the dog will not bite someone, but then the dog does, what error have we made?

• Neither error was made

• Type 1

• Type 2

• Both types of error were made

Ho: My phone won't get wet sledding

Ha: My phone will get wet sledding

If I assume my phone is going to get wet from sledding with it in my pocket, but it doesn't end up getting wet, what error is this?

• :)

• Type 1

• Type 2

• :(