6. The rungs of a ladder are each perpendicular to one side of the ladder. What can you conclude about the rungs of the ladder?
1 answer:
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Using the z-distribution, as we have a proportion, the 95% confidence interval is (0.2316, 0.3112).
<h3>What is a confidence interval of proportions?</h3>A confidence interval of proportions is given by:
In which:
is the sample proportion.
- z is the critical value.
- n is the sample size.
In this problem, we have a 95% confidence level, hence, z is the value of Z that has a p-value of
, so the critical value is z = 1.96.
We also consider that 130 out of the 479 season ticket holders spent $1000 or more at the previous two home football games, hence:
Hence the bounds of the interval are found as follows:
The 95% confidence interval is (0.2316, 0.3112).
More can be learned about the z-distribution at brainly.com/question/25890103
<h2>Verbal Phrase to Mathematical Phrase</h2><h3>Answer:</h3>
Let that number be .
The quotient of a number and is
.
"Increased" is just another term for "plus (+)" so increased by The quotient of a number and
is
And it tells us that it is so it must be