2. Please complete the chapter 19 reading quiz provided in class. Remember, this is a quiz grade! Get a 100%! In addition (as part of this quiz grade), please complete the attached table regarding sampling distributions. You have all of this information in your notes (from chapter 18); you just have to organize it all and re-write it into this table! (This will be an additional 3 points on the quiz grade--you either finish, or you don't; 0 points, or 3 points).
The reading questions are below:
Chapter 19 Reading Quiz:
Confidence Intervals for Proportions
Read
the chapter! You can surely answer these without reading everything; however,
the more effort you put into reading about and understanding confidence
intervals, the better prepared you’ll be for this week of class!
1.
Write down the interpretation of the confidence interval (complete sentence)
created for the proportion of sea fans on the Las Redes Reef that are infected
with aspergillosis. Five statements are provided on page 434; your task is to
write down the correct interpretation for a confidence interval. (1 point)
2.
What is the name of the interval calculated and
interpreted in this chapter? (1 point)
3.
Consider the “Just Checking” question at the
bottom of page 434. Which of the five statements (on page 435) is correct?
(Provide the number below). (1 point)
4.
What does “95% Confidence” really mean? (page
435-436). Read this section of the chapter and provide the meaning of “95%
confidence,” in your own words.
(Consider the last 2 sentences of the section!) (1 point)
5.
Define margin
of error (ME). (1 point)
6.
Define critical
value. Also, what symbol is used to represent a critical value? (1
point)
7.
We use conditions to determine if certain
assumptions are reasonable. Consider the “Independence Assumption” on page 438.
What conditions do we check that allow us to assume independence? (List 3
below). (1 point)
8.
There is an additional assumption we make—the
“Sample Size Assumption.” What condition do we check to allow us to assume our
sample size is large enough? (1 point)
9.
The formula for a one-proportion z-interval is
provided at the bottom of page 438. Write this formula below. In addition,
include the formula we use to calculate standard
error (SE). (1 point)
10.
Consider the “step-by-step” example on page 439.
Read the problem and follow through the solution. In the space below, provide a
general process for how we build confidence intervals. Do not provide numbers/a
solution for the problem; instead, your job is to write a numbered process for
how we could approach any confidence
interval problem. (2 points)
11.
Read the TI Tips on page 440-441. Write down the
sequence of buttons we press to create a 1-proportion z-interval on our
graphing calculator. (1 point)
12.
Page 441 starts a “What Can Go Wrong?” section
to end the chapter. There are 8 bolded (and italicized) phrases by the red
bullets (page 441 and 443). List these 8 phrases in the space below. (1 point)
If you lost your table, it should look like this! (Fill in the missing info):
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