Question

A poll found 57% of people were pro-choice on abortion. Show work.

Find the probability that of the next 40 randomly sampled people that 25 (x = 25) are pro-choice

Find the probability that of the next 30 randomly sampled people that less than 15 (x ≤ 15) are pro-choice

Find the probability that of the next 50 randomly sampled people that between 20 and 30 (20 ≤ x ≤ 30)are pro-choice.

Answer #1

Pro-Choice/Pro-Life and Region of the Country
The results of a 2013 Gallup poll about people's position on
abortion (pro-life or pro-choice) by region in the country are
summarized in the contingency table below.
East
Midwest
South
West
Totals
Pro-Life
212
106
176
188
682
Pro-Choice
184
94
231
215
724
Totals
396
200
407
403
1406
Express any probabilities (p-value) rounded to 3-significant
digits.
Test whether or not there is a dependent relationship between
abortion stance and region of the...

Find the indicated probability. Show work
A study of consumer smoking habits includes 186 people in the
18-22 age bracket (42 of whom smoke), 124 people in the 23-30 age
bracket (40 of whom smoke), and 99 people in the 31-40 age bracket
(21 of whom smoke). If one person is randomly selected from this
sample, find the probability of getting someone who is age 18-22 or
does not smoke.

PLEASE SHOW ALL WORK AND EXPLAIN
Four runners were randomly sampled and it was found they ran 11,
15, 11, 11 miles per week.
Assuming the population is normally distributed, if we wish to
test the claim that the mean running
distance is more than 10 miles per week, what conclusion would
you reach at the 5% level of
significance? Show all the steps of hypothesis testing. You must
state your conclusion in terms of the
mean running distance of...

#6)
A news poll found that 23% of college students were tattooed. At
a small college in the midwest the administration randomly surveyed
their students and discovered that only 15% were tattooed. They
conducted a hypothesis test against a 5% level of significance.
Their P-value was 0.02.
Which of the following can they conclude?
Group of answer choices
The difference between 0.23 and 0.15 is not statistically
significant.
The difference between 0.23 and 0.15 cannot be explained by
expected sampling...

Ch 5 Statistics Binomial Probability/Poisson Probability For
full credit, show your work step by step and circle your final
answer. Then Upload in Blackboard (you can do just one time) (Round
the final answer to 4 decimal digits)
2. The lengths of pregnancies are normally distributed with a
mean of 273 days and a standard deviation of 20 days. If 50 women
are randomly selected, find the probability that they have a mean
pregnancy between 273 days and 275 days....

In the 2000 U.S. Census, the ages of individuals in a small town
were found to be the following:
Less than 18
18-35
More than 35
20%
30%
50%
In 2010 the ages of 500 individuals from the same small town were
sampled with the following results:
Less than 18
18-35
More than 35
111
165
224
Using an alpha of 0.05, test the claim that the population
distribution of ages has changed in the last 10 years?
[Hint: Be...

Using the given information answer the following questions. Show
work where appropriate.
In a survey of a group of men, the heights in the 20-29 age
group were normally distributed, with a mean of inches 68.9 and a
standard deviation of 3.0 inches. A study participant is randomly
selected. Complete parts (a) through (d) below.
(a) Find the probability that a study participant has a height
that is less than 68 inches.
(b) Find the probability that a study participant...

The probability that a student passes Biology is 0.75 and the
probability that the student passes English is 0.82. The
probability that a student passes both subjects is
0.62. Find the probability that a student passes only
Biology.
An experiment is conducted to determine whether intensive
tutoring (covering a great deal of material in a fixed amount of
time) is more effective than paced tutoring (covering less material
in the same amount of time). Two randomly chosen groups are tutored...

5. The probability of a person getting the flu this year is
0.15. If we have a group of 20 compute the following. (10 points)
a. Standard deviation __1.60______ b. Probability that 2 people
have the flu ___0.229_____ c. Probability that less than 4 people
have the flu ____0.648____ d. Probability that at least one person
has the flu ____0.961____ e. Probability that at least 3 people
have the flu ____0.595____ f. A normal distribution of has a mean
of...

Data collected by the owners of the "Coffee" cafe
found that 50% drink coffee but do not eat cake,
5% eat cake but do not drink coffee and 25% eat cake and drink
coffee.
A cup of coffee costs 10 NIS and a slice of cake costs 15 NIS
Assume that each customer drinks at most one cup of coffee and eats
at most one slice of cake.
Will be X - the cafe's revenue from one customer.
A. Find...

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