Question
In: Statistics and Probability
A group of 30-year-olds is interviewed to determine whether the type of music most listened to...
A group of 30-year-olds is interviewed to determine whether the
type of music most listened to by people in their age category is
independent of the geographic location of their residence. Use the
chi-square test of independence, α = .01, and the following
contingency table to determine whether music preference is
independent of geographic location.
| Type of Music Preferred | |||||||||||||||||||||
Geographic Region |
|
(Round the intermediate values to 2 decimal places. Round your
answer to 2 decimal places.)
Observed =
Type of music preferred is (not independent OR
independent) of region of the country.
Solutions
Expert Solution
REGION : COUNTRY
CHI SQUARE TEST = 11.30+32.5+7.86 = 51.20
P VALUE FOR COUNTRY = 0
SO IT IS INDEPENDENT TO GEOGRAPHIC LOCATION OR REGION
orchestra answered 1 year agoRelated Solutions
Students were given a pre-test. Then after they listened to a certain type of music they...
Students were given a pre-test. Then after they listened to a
certain type of music they were given a similar post test. If we
define the difference as the post test score minus the pre test
score and we find a 95% confidence interval for the mean of the
differences to be [-1.34, 4.56]. Which of the following is true? It
seems like music has affected the scores and the post test scores
are significantly higher. It seems like music...
Music Group Control Group 30 28 30 23 32 25 23 26 28 30 24 20...
Music Group
Control Group
30
28
30
23
32
25
23
26
28
30
24
20
26
29
29
20
30
28
26
26
20
27
20
21
24
29
26
23
33
27
21
20
31
26
22
26
26
28
25
27
30
27
SPSS.1 A study reveals that older adults work
out a little harder when they listen to music. The table below
contains the data from two groups of older adults: one group
listened to music...
1.) Suppose heights of two-year-olds are normally distributed with a mean of 30 inches and a...
1.) Suppose heights of two-year-olds are normally distributed
with a mean of 30 inches and a standard deviation of 3.5
inches.
a) What is the probability that one two-year-old will be shorter
than 28 inches?
b) If random samples of size n = 40 two-year-olds are selected,
what is the approximate shape, mean, and standard deviation of the
sampling distribution of sample means?
c) What is the probability that the sample mean of these 40
two-year-olds will be shorter than...
A researcher is interested in whether music tastes differ by personality type. The table below presents...
A researcher is interested in whether music tastes differ by
personality type. The table below presents the observed and
expected frequencies. Does a statistically significant relationship
exist between personality type and music preference? Conduct a
hypothesis test to see. Follow the five-step model with an
alpha level of 0.05. Make sure to go through each step and
interpret the results in terms of the research question above.
Round to twoplaces past the
decimal point for your calculations and final answers....
On the planet of Mercury, 4-year-olds average 2.8 hours a dayunsupervised. Most of the unsupervised...
On the planet of Mercury, 4-year-olds average 2.8 hours a day
unsupervised. Most of the unsupervised children live in rural
areas, considered safe. Suppose that the standard deviation is 1.5
hours and the amount of time spent alone is normally distributed.
We randomly survey one Mercurian 4-year-old living in a rural area.
We are interested in the amount of time X the child spends alone
per day. (Source: San Jose Mercury News) Round all answers to 4
decimal places where...
A cognitive psychologist studying motivation wants to determine if type of music has any effect on...
A cognitive psychologist studying motivation wants to determine
if type of music has any effect on the number of days (in 1 month)
participants visit a gym. A total of three gyms are selected that
have different musical formats. 8 gym members are randomly sampled
from each gym, and their gym attendance is monitored for 30 days.
Complete the following ANOVA summary table, and use a significance
level of α=0.10α=0.10.
Source
SS
df
MS
F
P
Between
7.16
3.733
Within...
A cognitive psychologist studying motivation wants to determine if type of music has any effect on...
A cognitive psychologist studying motivation wants to determine
if type of music has any effect on the number of days (in 1 month)
participants visit a gym. A total of three gyms are selected that
have different musical formats. 14 gym members are randomly sampled
from each gym, and their gym attendance is monitored for 30 days.
Complete the following ANOVA summary table, and use a significance
level of α=0.05.
Use the =FDIST(F, dftreatment, dferror) function in Excel to
locate...
Supposed you were asked to estimate the proportion of 25-30 year olds that have a home...
Supposed you were asked to estimate the proportion of 25-30 year
olds that have a home (land line) telephone. In order to make this
estimate, you polled 600 people in this age range and the bellows
were reported below: [25] pts. Total]
Home
Phone
Frequency
NO
450
YES
150
600
1. What is the proportion of the sample that report YES, they
have a home phone line? [5 pts]
2. What condition must be met in...
On the planet of Mercury, 4-year-olds average 2.9 hours a day unsupervised. Most of the unsupervised...
On the planet of Mercury, 4-year-olds average 2.9 hours a day
unsupervised. Most of the unsupervised children live in rural
areas, considered safe. Suppose that the standard deviation is 1.5
hours and the amount of time spent alone is normally distributed.
We randomly survey one Mercurian 4-year-old living in a rural area.
We are interested in the amount of time X the child spends alone
per day. (Source: San Jose Mercury News) Round all answers to 4
decimal places where...
On the planet of Mercury, 4-year-olds average 3.1 hours a day unsupervised. Most of the unsupervised...
On the planet of Mercury, 4-year-olds average 3.1 hours a day
unsupervised. Most of the unsupervised children live in rural
areas, considered safe. Suppose that the standard deviation is 1.7
hours and the amount of time spent alone is normally distributed.
We randomly survey one Mercurian 4-year-old living in a rural area.
We are interested in the amount of time X the child spends alone
per day. (Source: San Jose Mercury News) Round all answers to 4
decimal places where...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- "Ethical Considerations" Please respond to the following: Reflect upon the responsibilities placed on auditors by the...
- A Japanese company has a bond outstanding that sells for 93 percent of its ¥100,000 par...
- What is the difference among the principles of modularization, abstraction, encapsulation, and separation of interface and...
- An investment project costs $20,100 and has annual cash flows of $4,400 for six years. ...
- PUT IN JAVA PROGRAMMING The StockB class: Design a class named StockB that contains the following...
- Draw a DFA for the following ( ∑ = {0,1}): Set of all strings with.
- In the article from Forbes notes that the goal of a leader is not to clone...
ADVERTISEMENT