Statistics and Probability Answers

State two conditions for the function f(x,y) to be continuous joint probability distribution of continuous random variables X and Y

Suppose there is a chance for a newly constructed building to collapse whether the design is faulty or not. The chance that the design faulty is 10%.the chance that the building collapse is 95% if the design is faulty and otherwise it is 45%.It is seen that the building collapsed. What is the probability that it is due to faulty design issued by suburbs?

Give three common models used in analysis of Time series

Why is it important to collect,study and record time series data

What is the importance of a time plot in analysis of a time series

Define a random walk process and show that it is not stationary. Describe how you can make it stationary. Give an example of a time series that behaves like a random walk

Describe the four components of time series analysis

Suppose there is a chance for a newly constructed building to collapse whether the design is faulty or not. The chance that the design faulty is 10%.the chance that the building collapse is 95% if the design is faulty and otherwise it is 45%.It is seen that the building collapsed. What is the probability that it is due to faulty design issued by suburbs?

in certain college in metro manila, a study was conducted to determine wheather the IQ scores of students who came from provincial high schools differ significantly from those of students who came from city high school. an IQ test was given to 200 studnets (100 from each group) college freshmen and the results are as follows.

students from province X1=99 SD= 5

Students from city X2= 102 SD=8

set up and test the appropriate statistical hypothesis

IV. Solve the problem.

In a certain college in Metro Manila, a study was conducted to determine whether or not the IQ scores of students who came from provincial high schools differ significantly from those students who came from city high schools. An IQ test was given to 200 (100 from each group) college freshmen and the results are as follows:

Students from Prov. H.S.: x1 = 99 and s1= 5

Students from City H.S.: x2 = 102 and s2 = 8

Set up and test the appropriate statistical hypotheses using 0.05 level of significance.