Question
In: Statistics and Probability
A manufacturer of a margarine spread containing phytosterols claims that a person’s cholesterol can be lowered...
A manufacturer of a margarine spread containing phytosterols
claims that a person’s cholesterol can be lowered by 10% using this
product for 3 months. Does the use of this margarine (with 2g of
phytosterols to a 500g tub) for 3 months reduce the LDL-cholesterol
level in the blood of healthy adults?
a) Design an experiment to answer this question. Comment on
elements of control, randomisation and replication in your design.
Your answer should include a flow-chart schematic with full
annotations.
b) State what type of data summary statistics you would measure in
your planned study.
c) State what type of inferential analysis you would apply to make
a decision about the manufacturer’s claim. (No actual analysis is
done … no data given.)
Solutions
orchestra answered 1 year agoRelated Solutions
A dietitian wishes to see if a person’s cholesterol level will change if their diet is...
A dietitian wishes to see if a person’s cholesterol level will
change if their diet is supplemented by a certain mineral. Six
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six subjects had their cholesterol level measured again after the
5-week supplement. The results are shown below. Assume
the two population distributions are normal and the subjects were
selected independently.
Can it be concluded that the cholesterol level has...
QUESTION THREE Easy Spread Ltd is a food processing company whose main product is margarine. The...
QUESTION THREE
Easy Spread Ltd is a food processing company whose main
product is margarine. The CEO, Grant, is contemplating expanding
the business by selling its margarine products into the growing
Indonesian market. He asks you, as the company’s accountant,
whether financial planning structures and processes within the
company are set up to deal with this expansion of operations and
greater financial complexity associated with export trading.
You know that the company has developed very detailed
processes for preparing its...
QUESTION THREE Easy Spread Ltd is a food processing company whose main product is margarine. The...
QUESTION THREE
Easy Spread Ltd is a food processing company whose main
product is margarine. The CEO, Grant, is contemplating expanding
the business by selling its margarine products into the growing
Indonesian market. He asks you, as the company’s accountant,
whether financial planning structures and processes within the
company are set up to deal with this expansion of operations and
greater financial complexity associated with export trading.
You know that the company has developed very detailed
processes for preparing its...
How can mislabeling subjective and objective claims negatively impact the quality of a person’s thinking. You...
How can mislabeling subjective and objective claims negatively
impact the quality of a person’s thinking. You might try thinking
of claims you could hear in a hospital or another work-related
environment. If a person has confused objective with subjective or
fact with opinion, what is the solution?
1. Elevated levels of plasma HDL cholesterol may be associated with lowered risk of coronary heart...
1. Elevated levels of plasma HDL cholesterol may be associated
with lowered risk of coronary heart disease. Several studies have
suggested that vigorous exercise may result in increased levels of
HDL cholesterol. To investigate this theory, researchers measured
HDL concentrations (mg/dL) in middle-aged (35-66 years) marathon
runners, as well as inactive men. The data are summarized below.
(Assume equal population variances in the two groups.)
sample size mean st. dev
Inactive men 70 43.3 14.2
Marathon runners 70 52.8 14.3...
*A researcher would like to find out whether a particular diet affects a person’s cholesterol reading....
*A researcher would like to find out whether a particular diet
affects a person’s cholesterol reading. She records the cholesterol
readings of 23 men who ate cow meat for dinner every night, 24 men
who ate chicken and 19 men who ate pig; her data appears in the
table to the right. She wants to know whether the differences in
the average readings are significant; i.e., whether the average
reading of all men who eat cow is different from the...
A golf club manufacturer claims that golfers can lower their scores by using the manufacturer's newly...
A golf club manufacturer claims that golfers can lower their
scores by using the manufacturer's newly designed golf clubs. Eight
golfers are randomly selected and each is asked to give his or her
most recent score. After using the new clubs for one month, the
golfers are asked again to give their most recent score. The scores
for each golfer are given in the table below. Is there enough
evidence to support the manufacturer's claim?
Let d=(golf score after using...
A golf club manufacturer claims that golfers can lower their scores by using the manufacturer's newly...
A golf club manufacturer claims that golfers can lower their
scores by using the manufacturer's newly designed golf clubs. Eight
golfers are randomly selected and each is asked to give his or her
most recent score. After using the new clubs for one month, the
golfers are asked again to give their most recent score. The scores
for each golfer are given in the table below. Is there enough
evidence to support the manufacturer's claim?
Let d=(golf score after using...
A golf club manufacturer claims that golfers can lower their scores by using the manufacturer's newly...
A golf club manufacturer claims that golfers can lower their
scores by using the manufacturer's newly designed golf clubs. Eight
golfers are randomly selected and each is asked to give his or her
most recent score. After using the new clubs for one month, the
golfers are asked again to give their most recent score. The scores
for each golfer are given in the table below. Is there enough
evidence to support the manufacturer's claim? Let d=(golf score
after using...
2. A golf club manufacturer claims that golfers can lower their scores by using the manufacturer’s...
2. A golf club manufacturer claims that golfers can lower their
scores by using the manufacturer’s newly designed golf clubs. Eight
golfers are randomly selected, and each is asked to give his or her
most recent score. After using the new clubs for one month, the
golfers are again asked to give their most recent score. The scores
for each golfer are shown in the table. Assume the golf scores are
normally distributed, is there enough evidence to support the...
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