A survey by Accenture indicated that 64% of millennials as compared to 28% of baby boomers prefer “hybrid� investment advice-a combination of traditional advisory services and low-cost digital tools-over either a dedicated human advisor or conventional robo-advisory services (computer-generated advice and services without human advisors) alone. Suppose that the survey was based on 500 respondents from each of the two generation groups. a. Construct a contingency table . b. Give an example of a simple event and a joint event. c. What is the probability that a randomly selected respondent prefers hybrid investment advice? d. What is the probability that a randomly selected respondent prefers hybrid investment advice and is a baby boomer? e. Are the events “generation group� and “prefer hybrid investment advice� independent? Explain?
A survey by Accenture indicated that 64% of millennials as compared to 28% of baby boomers prefer “hybrid� investment advice-a combination of traditional advisory services and low-cost digital tools-over either a dedicated human advisor or conventional robo-advisory services (computer-generated advice and services without human advisors) alone. Suppose that the survey was based on 500 respondents from each of the two generation groups. a. Construct a contingency table . b. Give an example of a simple event and a joint event. c. What is the probability that a randomly selected respondent prefers hybrid investment advice? d. What is the probability that a randomly selected respondent prefers hybrid investment advice and is a baby boomer? e. Are the events “generation group� and “prefer hybrid investment advice� independent? Explain?
Solution Summary: The author presents a contingency table that shows the number of respondents who prefer hybrid investment advice from two generation groups.
A survey by Accenture indicated that 64% of millennials as compared to 28% of baby boomers prefer “hybrid� investment advice-a combination of traditional advisory services and low-cost digital tools-over either a dedicated human advisor or conventional robo-advisory services (computer-generated advice and services without human advisors) alone.
Suppose that the survey was based on 500 respondents from each of the two generation groups.
a. Construct a contingency table.
b. Give an example of a simple event and a joint event.
c. What is the probability that a randomly selected respondent prefers hybrid investment advice?
d. What is the probability that a randomly selected respondent prefers hybrid investment advice and is a baby boomer?
e. Are the events “generation group� and “prefer hybrid investment advice� independent? Explain?
Definition Definition Visual representation of the relationship between two or more categorical variables. A contingency table is a categorical version of the scatterplot, which is used to visualize the linear relationship between two variables.
The following table describes the probability distribution of the number of
Mexican-Americans serving on a 12-member jury in Hidalgo County, Texas.
Assuming we repeat the random selection process for the 12 jurors and count the
number of Mexican-Americans each time, calculate the mean number of
Mexican-Americans (out of 12), the variance, and the standard deviation. Use these
results and the interval rule of thumb to calculate the highest common value and the
lowest common value. Based on the results, determine whether a jury consisting of 7
Mexican-Americans out of 12 jurors is common or uncommon.
Probability distribution: probabilities of
numbers of Mexican-Americans on a
12-member jury, assuming the
members are randomly selected from
a population in which 80% of the
inhabitants are Mexican-American
x
(méxico-
estadouni-
P(x)
denses)
0
0+
1
0+
2
0+
3
0+
4
0.001
5
0.003
6
0.016
7
0.053
8
0.133
9
0.236
10
0.283
11
0.206
12
0.069
a) When two variables are correlated, can the researcher be sure that one variable causes the other? If YES , why? If NO , why?
b) What is meant by the statement that two variables are related? Discuss with examples.
Good Day, assist me with plotting the following. I've already calculated the System Average Interruption Duration Index and System Average Interruption Frequency Index. using this data
Create time series plots form the reliability metrics SAIDI and SAIFI along with thetrend lines based on the linear regression
SAIDI(MINUTES)
SAIFI(Interruptions)
2.58
0.045
2.94
0.056
2.32
0.056
3.21
0.177
2.78
0.180
2.72
0.121
2.44
0.119
3.19
0.175
2.21
0.065
2.30
0.135
3.49
0.128
3.60
0.112
2.15
0.104
3.75
0.055
3.12
0.036
2.85
0.123
2.62
0.173
3.08
0.047
1.92
0.040
2.94
0.147
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Hypothesis Testing - Solving Problems With Proportions; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=76VruarGn2Q;License: Standard YouTube License, CC-BY
Hypothesis Testing and Confidence Intervals (FRM Part 1 – Book 2 – Chapter 5); Author: Analystprep;https://www.youtube.com/watch?v=vth3yZIUlGQ;License: Standard YouTube License, CC-BY