A painter is standing on a ladder that is leaning against a building. The angle of elevation of the ladder is 44 degrees. The he
ight of the building is 80 feet. What is the length of the ladder, to the nearest hundredth?
1 answer:
Answer:
<em>Answer is</em><em> </em><em>well</em><em> </em><em>defined</em><em> </em><em>in</em><em> </em><em>the</em><em> </em><em>image</em><em> </em><em>115</em><em>.</em><em>16</em><em> </em><em>feet</em>
Step-by-step explanation:
For the value of sin44 degrees use your calculator to calculate the value.
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Answer:
Type I error is to Reject the claim that the proportion of people who write with their left hand is 0.29 when the proportion is actually 0.29.
Type II error is Fail to reject the claim that the proportion of people who write with their left hand is 0.29 when the proportion is different from 0.29.
Step-by-step explanation:
We are given the following hypothesis below;
Let p = <u><em>proportion of people who write with their left hand</em></u>
So, Null Hypothesis, : p = 0.22 {means that the proportion of people who write with their left hand is equal to 0.22}
Alternate Hypothesis, : p
0.22 {means that the proportion of people who write with their left hand is different from 0.22}
Now, Type I error states that we conclude that the null hypothesis is rejected when in fact the null hypothesis was actually true. Or in other words, it is the probability of rejecting a true hypothesis.
So, in our question; Type I error is to Reject the claim that the proportion of people who write with their left hand is 0.29 when the proportion is actually 0.29.
Type II error states that we conclude that the null hypothesis is accepted when in fact the null hypothesis was actually false. Or in other words, it is the probability of accepting a false hypothesis.
So, in our question; Type II error is Fail to reject the claim that the proportion of people who write with their left hand is 0.29 when the proportion is different from 0.29.