Question

Does the maker of M&Ms^{®} (Mars, Inc.) use the same
proportion of red candies in its plain and peanut varieties? A
random sample of 51 plain M&Ms contained 11 red candies, and
another random sample of 30 peanut M&Ms contained 6 red
candies. (Use *p*_{1} for the proportion of red
candies in plain M&Ms and *p*_{2} for the
proportion of red candies in peanut M&Ms.)

(a) Construct a 95% confidence interval for the difference in
the proportions of red candies for the plain and peanut varieties
(*p*_{1} −
*p*_{2}).

(Round your answers to three decimal places.)

Answer #1

**=NORM.S.INV((1-0.025))**" to find the Z-value.

Does the maker of M&Ms® (Mars, Inc.) use the same proportion
of red candies in its plain and peanut varieties? A random sample
of 55 plain M&Ms contained 14 red candies, and another random
sample of 40 peanut M&Ms contained 7 red candies. (Use p1 for
the proportion of red candies in plain M&Ms and p2 for the
proportion of red candies in peanut M&Ms.)
(a) Construct a 95% confidence interval for the difference in
the proportions of red candies...

Does Mars, Incorporated use the same proportion of red candies
in its plain and peanut varieties? A random sample of 54 plain
M&M'S contained 15 red candies, and another random sample of 31
peanut M&M'S contained 9 red candies. (Use p1 for the
proportion of red candies in plain M&M'S and p2 for the
proportion of red candies in peanut M&M'S.) (a) Construct a 95%
confidence interval for the difference in the proportions of red
candies for the plain and...

Does Mars, Incorporated use the same proportion of red candies
in its plain and peanut varieties? A random sample of 54 plain
M&M'S contained 12 red candies, and another random sample of 33
peanut M&M'S contained 5 red candies. (Use
p1 for the proportion of red candies in plain
M&M'S and p2 for the proportion of red
candies in peanut M&M'S.)
(a) Construct a 95% confidence interval for the difference in
the proportions of red candies for the plain and...

Does Mars, Incorporated use the same proportion of red candies
in its plain and peanut varieties? A random sample of 59 plain
M&M'S contained 10 red candies, and another random sample of 33
peanut M&M'S contained 7 red candies. (Use
p1 for the proportion of red candies in plain
M&M'S and p2 for the proportion of red
candies in peanut M&M'S.)
(a) Construct a 95% confidence interval for the difference in
the proportions of red candies for the plain and...

Does Mars, Incorporated use the same proportion of red candies
in its plain and peanut varieties? A random sample of 54 plain
M&M'S contained 14 red candies, and another random sample of
40peanut M&M'S contained 6 red candies. (Use
p1 for the proportion of red candies in plain
M&M'S and p2 for the proportion of red
candies in peanut M&M'S.)
(a) Construct a 95% confidence interval for the difference in
the proportions of red candies for the plain and peanut...

M&M Mars publishes information regarding the
proportions of colors of candies in each type of M&Ms
(plain, peanut, pretzel, caramel, etc.). The plain type
M&Msare advertised to have 60% brown candies.
Let's say you take a random sample of candies. Are you more
likely to get a sample with 60% brown candies if you have a sample
of 40 candies or a random sample of 400 candies?
a. A random sample of 40 M&Ms is more likely to
have 60%...

M&M Mars publishes information regarding the
proportions of colors of candies in each type of M&Ms
(plain, peanut, pretzel, caramel, etc.). The plain type
M&Msare advertised to have 60% brown candies.
Suppose that 20 students each take a random sample of 50
candies, calculate the sample proportion of brown candies, and
create a single graph from the class data.
Answer each of the questions by choosing the best responses from
the options below. **You will choose one response for each...

Mars Inc. claims that they produce M&Ms with the following
distributions:
Brown
30%
Red
20%
Yellow
20%
Orange
10%
Green
10%
Blue
10%
A bag of M&Ms was randomly selected from the grocery store
shelf, and the color counts were:
Brown
23
Red
23
Yellow
20
Orange
15
Green
17
Blue
15
Using the χ2 goodness of fit test to determine if the
proportion of M&Ms is what is claimed, what is the test
statistic?
a) χ2 = 10.409
b)...

Mars Inc. claims that they produce M&Ms with the following
distributions:
Brown
30%
Red
20%
Yellow
20%
Orange
10%
Green
10%
Blue
10%
A bag of M&Ms was randomly selected from the grocery store
shelf, and the color counts were:
Brown
25
Red
23
Yellow
21
Orange
13
Green
15
Blue
14
Using the χ2 goodness of fit test (α = 0.10) to
determine if the proportion of M&Ms is what is claimed. Select
the [p-value, Decision to Reject (RH0)...

Milk Chocolate M&M’s come in 6 colors; blue, orange,
green, yellow, red, and brown.
The color is red and the number of candies is 25/200 total
M&Ms
1. Choose your favorite color of M&M’s you will be working
with for this project. State the color and give the counts
below.
Color of choice:
Number of M&M's in your color:
Total number of M&M's:
Proportion of M&M's in your color:
2. Construct a 95% confidence interval for the proportion of
M&M’s...

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