500=140+40h
minus 140 both sides
360=40h
divide y 40
9=h
9 hours
Answer:
Type I error
Step-by-step explanation:
A type I error occurs if the null hypothesis is rejected when it is actually true.
Type I Type II
Reject null when true Fail to reject null when not true
Null hypothesis: ∪ = 30%
Alternative hypothesis: ∪ > 30%
The researchers concluded that more than 30% of first-grade students at this school have entered the concrete operational stage of development and they rejected the null hypothesis.
However, a census actually found that in the population of all first graders at this school, only 28% have entered the concrete operational stage.
A type I error has been made because in actuality the null hypothesis was true but was rejected.
The answer would be D. For you to find the solution you would need to look at the x from the coordinates.
Answer:
<h2>
<em>Option </em><em>B</em></h2>
<em>please </em><em>see</em><em> the</em><em> attached</em><em> picture</em>
<em>hope </em><em>it</em><em> helps</em><em>.</em><em>.</em>
<em>Good </em><em>luck</em><em> on</em><em> </em><em>your </em><em>assignment</em>
