Statistics
Assignment 6
1. A random sample of 100 people was taken. Eighty-five of the people in the sample
favored Candidate A. We are interested in determining whether or not the proportion of the
population in favor of Candidate A is significantly more
In this case, ill use 3 ethical principles, long-term self-interest, government requirements, and individual
rights, to explore the ways in which companies can decide whether to hire smokers. According to the
principle of long-term self-interest, you shou
1.
Statistics
Assignment 4 for FIN and MAN
A major department store has determined that its customers charge an average of $500 per
month, with a standard deviation of $80. Assume the amounts of charges are normally
distributed.
a.
b.
c.
2.
What percentag
Home Assignment 2: Probability
1. A) An experiment consists of four outcomes with P(E1) = 0.2, P(E2) = 0.3, and
P(E3) = 0.4. What is the probability of outcome E4?
Answer: P(E1)+P(E2)+P(E3)+P(E4)=1
0.2+0.3+0.4+P(E4)=1
P(E4) = 1-0.2-0.3-0.4 = 0.1
B) If a c
Statistics
Assignment 5 (Interval Estimation)
1. A random sample of 49 statistics examinations was taken. The average score, in the sample, was 84
with a variance of 12.25. What is the 95% confidence interval for the average examination score of the
popul
Introduction
It is more relevant as the use of English as the international common language becomes more extended.
Learning a second language is a possibility many consider at some point. Language courses are an option or a
requirement in elementary, seco
1) An investment bank is a financial intermediary that performs a variety of services, primarily:
Raising Capital & Security Underwriting
Mergers & Acquisitions
Sales & Trading
Retail and Commercial Banking
Investment Banks earn profit by charging fee
Statistics. Assignment 1. Alida Asilbekova FIN-2A
1. a) The frequency is 2.
Relative frequency = absolute frequency/length of data set. 2/9=0,222
b) The mode is 13 and 18. The median is 18
c) Variance of the sample:
S^2=(81+16+25+4+9+9+81+49+4)/8=278/8=34
Statistics. Assignment 1. Alida Asilbekova FIN-2A
1. a) The frequency is 2.
Relative frequency = absolute frequency/length of data set. 2/9=0,222
b) The mode is 13 and 18. The median is 18
c) Variance of the sample:
S^2=(81+16+25+4+9+9+81+49+4)/8=278/8=34