If a tree is a height of 37 feet and it's shadow is a length of 28 feet on the ground find the angle of elevation the top of the
shadow makes with the top of the tree in degrees
2 answers:
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Answer:
30.4 miles
Step-by-step explanations:
Please refer to the attached image for explanations
Answer:
The population proportion is estimated to be with 99% confidence within the interval (0.1238, 0.2012).
Step-by-step explanation:
The formula for estimating the population proportion by a confidence interval is given by:
Where:
is the sample's proportion of success, which in this case is the people that regularly lie during surveys,
is the critical value needed to find the tails of distribution related to the confidence level,
is the sample's size.
<u>First</u> we compute the value:
<u>Next</u> we find the z-score at any z-distribution table or app (in this case i've used StatKey):
Now we can replace in the formula with the obtained values to compute the confidence interval:
