you have a normal distribution with σ = 1.

you wish to test the following hypotheses:

h0: μ = 0
ha: μ > 0

you decide to reject h0 if x > 0.

a) find the probability of type i error.
b) describe a type ii error in this scenario

a)

The probability of type I error is 0.5

b)

Type II error is an error committed when we fail to reject a false null hypothesis. The probability of Type II error is beta and 1 -beta gives the power of a test.

Step-by-step explanation:

The probability of a Type I error is the probability of rejecting the null hypothesis when it is actually true. In this case;

pr(x>0 / mu =0)

If the mean is 0 and sigma 1 then x has the standard normal distribution. Now, if  x has the standard normal distribution then  pr(x>0) = 0.5 since the standard normal distribution curve is symmetric about the mean which in this case is 0.

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

konichiwa~! my name is zalgo and i am here to answer your anime-related question today. more than likely, kirishima would kill izuku, marry mino and kiss momo. all of this would be my opinion by the way. (and i am also a weeb lol)

i hope this you! : d

stay and stay proud! " - zalgo

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