Can you help me to solve these questions? Whenever your decision is to reject th
ID: 3217137 • Letter: C
Question
Can you help me to solve these questions?
Whenever your decision is to reject the null hypothesis, there is a risk of a Type I error.
True False
A Type I error occurs when you conclude that a treatment effect exists, but the treatment has no effect.
True False
The critical region consists of extreme sample values that are very unlikely to occur if the null hypothesis is true.
True False
A non directional test is considered a 2-tailed test
True False
If a mechanic looks at your car engine and says there is nothing wrong with it and your car breaks down when you leave the garage, what type of error did the mechanic make?
Type I Type II No error made
Let’s use a shepherd and wolf example. Let’s say that our null hypothesis is that there is “no wolf present.” Assuming a non directional hypothesis test, what would be the alternative hypothesis?
A shepherd present A wolf present
Again our null hypothesis is that there is “no wolf present.” Let’s assume there is no wolf present; however, the shepherd raises the alarm by screaming “Wolf! Wolf!” What type of error is this?
Type I Type II No error made
Again our null hypothesis is that there is “no wolf present.” Let’s assume there is no wolf present and the shepherd does not raise an alarm. What type of error is this?
Type I Type II No error made
Again our null hypothesis is that there is “no wolf present.” Let’s assume there is a wolf present; however, the shepherd does not raise an alarm. What type of error is this?
Type I Type II No error made
Again our null hypothesis is that there is “no wolf present.” Let’s assume there is a wolf present and the shepherd raises the alarm by screaming “Wolf! Wolf!” What type of error is this?
Type I Type II No error made
Explanation / Answer
Type I error : We reject null hypothesis when it is True.
Type II error : We accept null hypothesis when it is False.
1) Type I error : We reject null hypothesis when it is True.
The corect option is : True.
2) False.
Type I error : When you conclude that a treatment effect does not exist, but the treatment has effect.
3) True.
4) True .
Directional is one tailed. Either right tailed or left tailed.
5) Here null hypothesis is accepted that there is nothing wrong with car engine where it is actually false that is your car breaks down when you leave the garage.
Type II error.
6) null hypothesis is that there is “no wolf present.”
Alternative hypothesis : A wolf present.
7) null hypothesis is that there is “no wolf present.” Let’s assume there is no wolf present; that is null hypothesis is true.
The shepherd raises the alarm by screaming “Wolf! Wolf!” that is he rejected null hypothesis.
Type I error .
8) Again our null hypothesis is that there is “no wolf present.” Let’s assume there is no wolf present ;that is null hypothesis is true.
The shepherd does not raise an alarm. That is he accepted null hypothesis when it is true.
No error made
9) Again our null hypothesis is that there is “no wolf present.” Let’s assume there is a wolf present; that is null hypothesis is false.
The shepherd does not raise an alarm. That is , he accepted null hypothesis when it is false.
Type II error.
10 ) Again our null hypothesis is that there is “no wolf present.” Let’s assume there is a wolf present; that is null hypothesis is false.
The shepherd raises the alarm by screaming “Wolf! Wolf!”. That is he rejected null hypothesis when it is false.
No error made
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.