Question

What is the preferred beverage ordered at lunch independent of age bracket in a hospital cafeteria? Test the null that is independent at α = 0.05.

Coffee/Tea | Soft Drink | Other | |

21-34 | 26 | 95 | 18 |

35-55 | 41 | 40 | 20 |

>55 | 24 | 13 | 32 |

Answer #1

A sociologist is studying the age of the population in Blue
Valley. Ten years ago, the population was such that 20% were under
20 years old, 10% were in the 20- to 35-year-old bracket, 32% were
between 36 and 50, 24% were between 51 and 65, and 14% were over
65. A study done this year used a random sample of 210 residents.
This sample is given below. At the 0.01 level of significance, has
the age distribution of the...

A sociologist is studying the age of the population in Blue
Valley. Ten years ago, the population was such that 19% were under
20 years old, 13% were in the 20- to 35-year-old bracket, 32% were
between 36 and 50, 24% were between 51 and 65, and 12% were over
65. A study done this year used a random sample of 210 residents.
This sample is given below. At the 0.01 level of significance, has
the age distribution of the...

A sociologist is studying the age of the population in Blue
Valley. Ten years ago, the population was such that 19% were under
20 years old, 14% were in the 20- to 35-year-old bracket, 34% were
between 36 and 50, 24% were between 51 and 65, and 9% were over 65.
A study done this year used a random sample of 210 residents. This
sample is given below. At the 0.01 level of significance, has the
age distribution of the...

A sociologist is studying the age of the population in Blue
Valley. Ten years ago, the population was such that 19% were under
20 years old, 12% were in the 20- to 35-year-old bracket, 32% were
between 36 and 50, 24% were between 51 and 65, and 13% were over
65. A study done this year used a random sample of 210 residents.
This sample is given below. At the 0.01 level of significance, has
the age distribution of the...

Political parties want to know what groups of people support them.
The General Social Survey (GSS) asked its 2012 sample, "Generally
speaking, do you usually think of yourself as a Republican,
Democrat, Independent, or what?" The GSS is essentially an SRS of
American adults. Here is a large two-way table breaking down the
responses by the highest degree the subject held:
NONE
HIGH
SCHOOL
JR.
COLLEGE
BACHELOR
GRADUATE
Strong Democrat
45
163
32
61
55
Not strong
Democrat
45
176...

Mr. Acosta, a sociologist, is doing a study to see if there is a
relationship between the age of a young adult (18 to 35 years old)
and the type of movie preferred. A random sample of 93 adults
revealed the following data. Test whether age and type of movie
preferred are independent at the 0.05 level.
Person's
Age
Movie
18-23
yr
24-29
yr
30-35
yr
Row
Total
Drama
9
12
13
34
Science Fiction
14
11
5
30
Comedy...

Use the following data to test if there is a difference in mean
age between mothers of a boy and mothers of a girl at alpha =0.05.
provide p-value
MomAge
gestation
sex
weight
preemie
35
39
F
3175
FALSE
22
42
F
3884
FALSE
35
39
F
3030
FALSE
23
40
F
3629
FALSE
23
42
F
3481
FALSE
25
38
F
2693
FALSE
25
40
F
3345
FALSE
24
40
F
3232
FALSE
19
40
F
2795
FALSE
20...

You are a consultant who works for the Diligent Consulting
Group. In this Case, you are engaged on a consulting basis by
Loving Organic Foods. In order to get a better idea of what might
have motivated customers’ buying habits you are asked to analyze
the factors that impact organic food expenditures. You opt to do
this using linear regression analysis.
Case Assignment
Using Excel, generate regression estimates for the following
model:
Annual Amount Spent on Organic Food = α...

You are currently working at NCLEX Memorial Hospital in the
Infectious Diseases Unit. Over the past few days, you have noticed
an increase in patients admitted with a particular infectious
disease. You believe that the ages of these patients play a
critical role in the method used to treat the patients. You decide
to speak to your manager, and together you work to use statistical
analysis to look more closely at the ages of these patients.
You do some research...

MALE :Student # Gender Height Shoe Age Hand
1 M 67 10 19 R
2 M 74 12 17 R
3 M 72 11.5 19 R
4 M 69 10 35 R
5 M 66 9 18 R
6 M 71 10.5 17 R
7 M 72 10.5 17 R
8 M 66 10 20 R
9 M 67 10 18 R
10 M 71 10.5 24 R
11 M 66 10 21 R
12 M 71 10.5 18 R...

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