Question
In: Statistics and Probability
A large food distributor claims that 45% of all individuals who purchase eggs from its grocery...
A large food distributor claims that 45% of all individuals who purchase eggs from its grocery stores choose standard white eggs, 25% choose standard brown eggs, 20% choose organic eggs, and 10% choose free-range eggs. To investigate this claim, researchers collected data from a random sample of the distributor's customers in a large city. The results were 274 white, 159 brown, 126 organic, and 41 free-range egg purchases. Are the data from the sample consistent with the distributor's claim? Conduct an appropriate statistical test at the 5% significance level to support your conclusion. Make sure to include parameters, check conditions, and show calculations before formulating a conclusion
Solutions
orchestra answered 2 years agoRelated Solutions
A large furniture company claims that 65% of all individuals who buy chairs from its stores...
A large furniture company claims that 65% of all individuals who
buy chairs from its stores choose wood chairs, 20% choose plastic
chairs, and 15% choose metal chairs. To investigate this claim,
researchers collected data from a random sample of the company's
customers. The results were 305 wood, 121 plastic, and 74 metal.
Are the data from the sample consistent with the company's claim?
Conduct an appropriate statistical test at the 5% significance
level to support your conclusion. Make sure...
A large furniture company claims that 65% of all individuals who buy chairs from its stores...
A large furniture company claims that 65% of all individuals who
buy chairs from its stores choose wood chairs, 20% choose plastic
chairs, and 15% choose metal chairs. To investigate this claim,
researchers collected data from a random sample of the company's
customers. The results were 305 wood, 121 plastic, and 74 metal.
Are the data from the sample consistent with the company's claim?
Conduct an appropriate statistical test at the 5% significance
level to support your conclusion. Make sure...
A large gasoline distributor claims that 65% of all vehicle owners who use its service stations...
A large gasoline distributor claims that 65% of all vehicle
owners who use its service stations choose regular unleaded gas,
20% choose mid-grade unleaded gas, and 15% choose premium unleaded
gas. To investigate this claim, researchers collected data from a
random sample of drivers who filled up their vehicles at the
distributor's service stations in a large city. The results were
305 regular, 121 mid-grade, and 74 premium gas purchases. Are the
data from the sample consistent with the distributor's...
A) A company that owns a large number of grocery stores claims that customers who pay...
A) A company that owns a large number of grocery stores claims
that customers who pay by personal check spend an average of $87
with a standard deviation of $22. Assume the amount spent by these
customers is normally distributed.
What is the probability that a customer using a check spends
less than $90?
Express your answer as a decimal rounded to four places after
the decimal point.
B)
A company that owns a large number of grocery stores claims...
8. Suppose 22% of the eggs sold at a local grocery store that are graded “large”...
8. Suppose 22% of the eggs sold at a local grocery store that
are graded “large” are smaller than that and should be graded
“medium.” A random sample of 15 eggs graded large is obtained.
Answer the following using the binomial distribution:(Round
to 4 (FOUR) decimal places.)
What is the probability that 8 or more of the “large” eggs
sampled are really medium-sized?
What is the probability fewer than 3 of the “large” eggs sampled
are really medium-sized?
What is...
a frozen food distributor claims that 80% of its frozen chicken dinners contains three ounce of...
a frozen food distributor claims that 80% of its frozen chicken
dinners contains three ounce of chicken.to check this claim,a
consumer testing service decides to check ten of these frozen
chicken dinners and reject the claim unless at least seven of them
contain at least three ounces of chicken.find the probability that
the testing services will make the error of (a0 rejecting the claim
even though it is true; (b) not rejecting the claim
when in really only 70% of...
A container of one dozen large eggs was purchased at a local grocery store. Each egg...
A container of one dozen large eggs was purchased at a local
grocery store. Each egg was measured to determine its diameter (in
millimeters) and weight (in grams). The results for the 12 eggs are
given in the following table. Weight is the dependent variable.
Calculate the r-sqr, correlation coefficient, and explain each
value.
Index
1
2
3
4
5
6
7
8
9
10
11 12
Diameter
(mm)
42.2 45.45
47.8 47.4
47.7 43.5
44.4 43.9
46.2 45.9
44.3 ...
Individuals who consume large amounts of alcohol do not use the calories from this source as...
Individuals who consume large amounts of alcohol do not use the
calories from this source as efficiently as calories from other
sources. One study examined the effects of moderate alcohol
consumption on body composition and the intake of other foods.
Fifteen subjects participated in a crossover design where they
either drank wine for the first 6 weeks and then abstained for the
next 6 weeks or vice versa. During the period when they drank wine,
the subjects, on average, lost...
Individuals who consume large amounts of alcohol do not use the calories from this source as...
Individuals who consume large amounts of alcohol do not use the
calories from this source as efficiently as calories from other
sources. One study examined the effects of moderate alcohol
consumption on body composition and the intake of other foods.
Fifteen subjects participated in a crossover design where they
either drank wine for the first 6 weeks and then abstained for the
next 6 weeks or vice versa. During the period when they drank wine,
the subjects, on average, lost...
A large grocery retailer tracks productivity and costs of its facilities closely. Data in the Grocery...
A large grocery retailer tracks productivity and costs of its
facilities closely. Data in the Grocery retailer file were obtained
from a single distribution center for a one-year period. Each data
point for each variable represents one week of activity. The
variables included are total labor hours required to handle a
shipment (Y) in the first column, the number of cases shipped
(X1) in the second column, the indirect costs of the
total labor hours as a percentage (X2) in...
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