Question
In: Statistics and Probability
. A package of Chips Ahoy Cereal is marked “Net Wt. 12 oz.” The actual weight...
. A package of Chips Ahoy Cereal is marked “Net Wt. 12 oz.” The actual weight is normally distributed
with a mean of 12 oz. and a standard deviation of 0.2 oz. In each of the following, provide sketches
of the normal distribution curve with appropriate labels and formulas used.
a. What percent of boxes would be expected to weigh more than 11.75 oz.?
b. In a sample of 2,000 packages, how many would be expected to weigh more than 12.3 oz.?
c. What is the probability that a random package would weigh between 11.8 and 12.1 oz.?
Solutions
orchestra answered 2 years agoRelated Solutions
Students investigating the packaging of potato chips purchased 6 bags of chips marked with a net...
Students investigating the packaging of potato chips purchased 6
bags of chips marked with a net weight of 28.5 grams. They
carefully weighed the contents of each bag, recording the
following weights (in grams): 29.4, 28.3, 29.4, 28.8, 28.9,
28.5.
A) Create a 95% confidence interval for the mean weight
of such bags of chips:
( __ , __ ) grams -- Round to one decimal as needed.
B) Explain in context what your interval
means:
- We are 95%...
The net weight (in oz.) of a dry bleach product is to be monitored by and R and and...
The net weight (in oz.) of a dry bleach product is to be
monitored by and R and and
S control charts using a sample size of n = 5. Data for
20 preliminary samples are shown below.
Subgroup Number
X1
X2
X3
X4
X5
1
12
9
13
15
12
2
10
7
16
14
8
3
7
8
10
6
9
4
8
9
15
13
7
5
9
10
7
13
16
6
12
11
10
10
8
7
16
10...
The net weight (in oz.) of a dry bleach product is to be monitored by X...
The net weight (in oz.) of a dry bleach product is to be
monitored by X and R and X and S control charts
using a sample size of n = 5. Data for 20 preliminary samples are
shown below.
Subgroup Number
X1
X2
X3
X4
X5
1
12
10
13
15
12
2
10
7
16
14
8
3
11
12
10
16
9
4
8
9
15
13
7
5
9
10
14
13
16
6
12
11...
The net weight (in oz.) of a dry bleach product is to be monitored by X...
The net weight (in oz.) of a dry bleach product is to be
monitored by X ̅ and R and X ̅ and S control charts using a sample
size of n = 5. Data for 20 preliminary samples are shown below.
Subgroup Number
X1
X2
X3
X4
X5
1
8
10
11
15
12
2
10
9
16
14
8
3
11
12
10
16
14
4
7
11
8
13
9
5
9
10
12
11
16
6...
The net weight (in oz.) of a dry bleach product is to be monitored by X...
The net weight (in oz.) of a dry bleach product is to be
monitored by X and R and X and S control charts
using a sample size of n = 5. Data for 20 preliminary samples are
shown below.
Subgroup Number
X1
X2
X3
X4
X5
1
12
10
13
15
12
2
10
7
16
14
8
3
11
12
10
16
14
4
8
11
15
13
7
5
9
10
14
13
16
6
12
11...
The net weight (in oz.) of a dry bleach product is to be monitored by and R and and...
The net weight (in oz.) of a dry bleach product is to be
monitored by and R and and
S control charts using a sample size of n = 5. Data for
20 preliminary samples are shown below.
Subgroup Number
X1
X2
X3
X4
X5
1
12
9
13
15
12
2
10
7
16
14
8
3
7
8
10
6
9
4
8
9
15
13
7
5
9
10
7
13
16
6
12
11
10
10
8
7
16
10...
A company produces packets of soap powder labeled "Giant Size 20 oz." The actual weight of...
A company produces packets of soap powder labeled "Giant Size
20 oz." The actual weight of soap powder in such a box has a Normal
distribution with a mean of 21 oz and a standard deviation of 0.5
oz. To avoid dissatisfied customers, a box of soap is considered
underweight if it weighs less than 20 oz. To avoid losing money,
the top 5% (the heaviest 5%) is labeled overweight.
How heavy does a box have to be in order...
Mean net weight of a sample of bag of chips is 301g (n = 10), but...
Mean net weight of a sample of bag of chips is 301g (n = 10),
but the company’s claim is 300g. Find out if our sample is
statistically different from the company’s claim. Estimated SD =
0.523. Write an interpretation
Bags of a certain brand of tortilla chips claim to have a net weight of 14...
Bags of a certain brand of tortilla chips claim to have a net
weight of 14 ounces. Net weights actually vary slightly from bag to
bag and are normally distributed with mean μ. A representative of a
consumer advocate group wishes to see if there is any evidence that
the mean net weight is less than advertised and so intends to test
the hypotheses H0: μ = 14, Ha: μ < 14. To do this, he selects 16
bags of...
Bags of a certain brand of tortilla chips claim to have a net weight of 14...
Bags of a certain brand of tortilla chips claim to have a net
weight of 14 oz. Net weights actually vary slightly from bag to
bag. Assume net weights are Normally distributed. A representative
of a consumer advocate group wishes to see if there is any evidence
that the mean net weight is less than advertised and so intends to
test the hypotheses H0: μ = 14,
Ha: μ < 14. To do this, he selects 16 bags
of tortilla...
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