Question
In: Statistics and Probability
The following table lists the weight of individuals before and after taking a diet prescribed by...
The following table lists the weight of individuals before and after taking a diet prescribed by a weight-loss company for a month:
| Weight-loss Data | |||
|---|---|---|---|
| Individual | Weight Before (lb) |
Weight After (lb) |
Weight Loss (lb) |
| A | 126.8 | 127 | -0.2 |
| B | 127.4 | 127.2 | 0.2 |
| C | 130.5 | 130.5 | 0.0 |
| D | 189.8 | 190.2 | -0.4 |
| E | 141.5 | 141.1 | 0.4 |
| F | 159.2 | 159.2 | 0.0 |
You may find this Student's t distribution table useful in answering the following questions. You may assume that the differences in weight are normally distributed.
a)Calculate the sample variance (sd2) of the changes in individual weights. Give your answer to 2 decimal places.
sd2 =
b)A disgruntled customer states:
"This weight-loss company is a complete farce. All the people I know who signed up experienced no changes in their weight at all. I seriously doubt this diet has any effect whatsoever. I want my money back!"
You plan to do a hypothesis test on this claim where the hypotheses are:
H0: the customer's claim is true and the program has
no effect on weight
HA: the customer's claim is not true and the program
does have an effect on weight, whether it increases or
decreases
According to the data given, you should accept, reject, not reject the null hypothesis at a confidence level of 90%.
Solutions
orchestra answered 2 years agoRelated Solutions
The following table lists the weight of individuals before and after taking a diet prescribed by...
The following table lists the weight of individuals before and
after taking a diet prescribed by a weight-loss company for a
month:
Weight-loss Data:
Individual: A, B, C, D, E, F
Weight Before (lb): 123.7, 128.7, 135.6, 194.9, 145.5, 162.3
Weight After (lb): 109.4, 109.7, 123.3, 186.5, 126.8, 151.5
Weight loss (lb): 14.3, 19.0, 12.3, 8.4, 18.7, 10.8
You may find this Student's t distribution table useful in
answering the following questions. You may assume that the
differences in weight...
person weight before diet weight after diet 1 68 64 2 88 86 3 85 83...
person
weight before diet
weight after diet
1
68
64
2
88
86
3
85
83
4
89
86
5
92
90
The weights of a random sample of 5 people are recorded before
they are introduced to the liquid protein diet (a new
weight-reducing technique). Then they were instructed to follow the
liquid protein diet for 3 weeks. At the end of this period, their
weights (in kilograms) are again recorded. Results are given in the
table: Person Weight...
The table below shows the weights of seven subjects before and after following a particular diet...
The table below shows the weights of seven subjects before and
after following a particular diet for two months. Subject / A / B /
C / D / E / F / G
////////////////////////////////////////////////// Before / 165 /
151 / 196 / 175 / 179 / 172 / 191
////////////////////////////////////////////////// After / 166 /
154 / 169 / 164 / 176 / 193 / 169 Using a 0.01 level of
significance, test the claim that the diet is effective...
The following table lists the birth weight (in pounds), x, and the lengths (in inches),y, for...
The following table lists the birth weight (in pounds), x, and
the lengths (in inches),y, for a set of newborn babies at a local
hospital.
Birth Weight (in pounds), x
5
3
8
6
9
7
7
6
6
10
Length(in inches),y
16
15
18
19
19
18
20
17
15
21
Enter this information on your calculator and then answer the
following:
(A) What kind of linear relationship seems to exist between
birth weights of newborn babies and their...
Seventy-eight people participated in a study of weight loss with a specified diet. The following table...
Seventy-eight people participated in a study of weight loss
with a specified diet. The following table lists the amount of
weight loss for randomly selected participants when they followed
the diet, catagorized by age group.
Age Group
16 - 25
26 - 35
36 - 45
46 - 55
Data
4.2
7.0
5.4
3.4
2.4
8.5
1.9
5.3
3.3
1.1
2.7
0.9
1.7
4.5
9.2
0
3.5
-2.1
3.0
0.6
3.6
5.8
0.7
Is there evidence that different age groups...
A new diet plan emerges on a frequent basis promising individuals that they will lose weight....
A new diet plan emerges on a frequent basis promising
individuals that they will lose weight. Popular ones include Weight
Watchers, Atkins, south beach, and the keto diet and generally aim
altering the macronutrients one would ingest.
choose a popular diet and describe the dietary restrictions, the
overall plan and the claims made. Do you believe a person can be
successful in weight loss restricting a macronutrient? why or why
not?
300 words pls
Before taking this class, did you think your diet was balanced? What are the strengths and...
Before taking this class, did you think your diet was balanced?
What are the strengths and weaknesses of your current diet? Your
initial answer should be 500 words minimum. Reference at least two
sites you visited on this topic (APA or AMA citation).
Comment and provide feedback to the comments (300 words
minimum). PLEASE PROVIDE A SUBSTANTIAL RESPONSES (300 word minimum)
FOR THE ABOVE PARAGRAPH.Express ideas and opinions in a clear and
concise manner with obvious connection to the topic....
c. Taking every 20th passenger in your sorted table, create a new table that lists Passenger...
c. Taking every 20th passenger in your sorted table, create a
new table that lists Passenger ID and Rating for the 20 data points
you will now have (In excel please) with formula. I am stomped by
this.
TABLE C5-1: PASSENGER ID and CUSTOMER EXPERIENCE
RATING
Passenger ID
Rating (1-5)
T006
4
T007
5
T008
1
T009
4
T010
5
T011
3
T012
2
T013
3
T014
2
T015
3
T016
4
T017
4
T018
4
T019
5
T020
3...
The following data represents females' weights before and after pregnancy. Weight Before Pregnancy, 114, 107, 123,...
The following data represents females' weights before and after
pregnancy.
Weight Before Pregnancy, 114, 107, 123, 118, 136, 119, 127, 123,
129, 134, 134, 131, 132, 124, 134, 112, 122, 114, 109, 114, 116,
133, 129, 127, 128, 122, 134, 121, 122, 118, 126, 120, 118, 131,
124, 108, 127, 127, 129, 136
Weight After Pregnancy, 168, 161, 166, 157, 158, 166, 156, 157,
154, 153, 159, 158, 155, 164, 166, 157, 161, 166, 162, 148, 158,
165, 164, 159,...
The data set contains the weight (grams) of 10 mice before and after the treatment. Weight...
The data set contains the weight (grams) of 10 mice before and
after the treatment. Weight of the mice before treatment
before:
(200.1, 190.9, 192.7, 213, 241.4, 196.9, 172.2, 185.5, 205.2,
193.7)
Weight of the mice after treatment after:
(392.9, 393.2, 345.1, 393, 434, 427.9, 422, 383.9, 392.3,
352.2)
Is there enough evidence in the data that the treatment
increases the weight population average weight by at least 150
grams?
Please answer with R programming code. Thanks!
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