An environmental scientist wants to test the null hypothesis that an antipollution device for cars is not effective. Under which of the following conditions would a Type 1 error be committed?Pilihan jawabanO The scientist concludes that the antipollution device is effective when it actually is not.O The scientist concludes that the antipollution device is not effective when it actually is. O The scientist concludes that the antipollution device is not effective when it actually is not. O A type 1 error cannot be committed in this situation.

A specific, verifiable description of what the researcher(s) expect will happen in the study is called a hypothesis (plural: hypothese). It is announced at the study's beginning.

In most cases, this entails speculating on a potential correlation between two variables: the independent variable (what the researcher modifies) and the dependent variable (what the research measures).

The rejection of the correct null hypothesis is known as a "type I mistake."

The stated theory is that a car's anti-pollution technology is ineffective.

Therefore, when this null hypothesis is rejected provided that it is accurate, a "type I mistake" will take place.

a) The claim states that even if the null hypothesis is wrong, it is not rejected.

b) The claim is that, if the null hypothesis is true, it is rejected.

c) The claim makes reference to the null hypothesis being accepted as true.

d) There is a chance that a Type I error will occur.

The ideal choice is therefore b).

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