. In a QQ Plot, if the data points are mostly on the 45 degree line, the data is approximately normally distributed. Group of answer choices

True

False We're trying to show that the true proportion of Americans that are obese is greater than 40%. What would our parameter be?

The alternative hypothesis is Group of answer choices

What we assume to be true

What we are trying to show

What other research suggests

Always not equal to some value We're trying to show that the true average resting pulse rate of teenagers is greater than 70 . beats per minute. What would our parameter be?

We're trying to show that the true proportion of smokers is less than 33%. What would our parameter be?

If we fail to reject the null, but the null is actually false, we've

Proved what we wanted to prove

Made a type I error

Found evidence that supports the alternative

Made a type II error We're trying to show that the true average length of a hospital stay for a CoVid-19 patient is less than 24 days. What would our parameter be?

We're trying to show that the true percent of people who have twins is less than 20%. What would a type I error mean? Group of answer choices

Our test said that less than 20% of people have twins, and it's true in reality

Our test said that greater than 20% of people have twins, but it's actually less

Our test said that less than 20% of people have twins, but it's actually greater

Our test said that greater than 20% of people have twins, and it's true in reality We're trying to show that the true average length of an adult male femur is greater than 1.5 feet. What would a type I error mean? Group of answer choices

Our test results provide evidence that the true average is greater than 1.5, but it's actually less

Our test results provide evidence that it's less than 1.5 feet, but it's actually greater

Our tests results supported that the average length is greater than 1.5 feet

Our test results supported that the average length is less than 1.5 feet Sample size doesn't affect a confidence interval?

True

False