Find your question
and Get expert's answers*
Homework Help
*Click here to submit
Refer a Friend
Discount up to 15%*
Prepared References
Save up to 50%*
Homework Help >> Basic Statistics
  Defining trend-methods of determining trend in time series  

Q1.

a. Describe the characteristics of Statistics.

b. What are the components of Statistics? Give a brief explanation of each of the components.

Q2.

Dscribe the objectives of Statistical Average. What are the requisites of a good average?

Q3.

a. Mention the Characteristics of Chi-square test.

b. Two research workers classified some people in income groups on the basis of sampling studies. Their results are as follow:

Investigators                Income groups                  Total
                     Poor        Middle           Rich
A                   160           30               10              200
B                   140         120               40               300
Total              300         150               50               500

Demonstrate that sampling technique of at least one research worker is defective.

Q4.

What do you understand by the term cost of living index? Discuss the methods of construction of cost of living index with an example for each.

Q5.

Define the term trend. Enumerate the methods of determining trend in time series

Q6.

The following data represent number of units of production per day turned out by 5 different workmen using different types of machines.

Workmen                            Machine type
                           A          B         C           D
1                         44        38       47          36
2                         46        40       52          43
3                         34        36       44          32
4                         43        38       46          33
5                         38        42       49          39

i) Test whether mean productivity is similar for the four different machine types.

ii) Test whether 5 men vary with respect to mean productivity.

Ask an Expert for Solution

Ask an Expert for Answer Defining trend-methods of determining trend in time series

Request for Solution Files

Expected delivery within 24 Hours

Course: Basic Statistics

Ref. No:- TGS01591




Like US:-
Assignment Help

Ask an Expert & Get Answer

  • Quality work delivery
  • 100% Plagiarism free
  • Time on delivery
  • Privacy of work
Order Now
More Basic Statistics Questions


The scores of a random sample of 8 students on a physics test are as follows: 60, 62, 67, 69,70, 72, 75, and 78. Test to see if the sample mean is s
Heights of trees in a forest are normally distributed with mean 50 feet and standard deviation 12 feet. In a random sample of 36 trees what is the p
You are considering four independent variables for inclusion in a regression model. You select a sample of 30 observations, with the follwings resul
Suppose it has been observed that touchdowns scored in a game by your favorite football team are Poisson random variables. The rate is .. = 4 per ga
Why is it important to specify the null and alternative hypothesis, along with the significance level, before the sample data is observed? ( More th
Suppose that intrests rates offered for refinancing are normally distributed with a mean of 3.0% and standard deviation of 0.2%. What is the probabi
A panel of meteorological and civil engineers studying emergency evacuation plans for Florida's Gulf Coast in the event of a hurricane has estimated
Suppose a point (X,Y) is chosen at random from the disk x^2 + y^2 <= 1. Find (a) the marginal density of X and (b) the conditional density of Y g
You toss a coin five times. Each time it lands on heads, you double your money. Each time it lands on tails you lose half of your money. You start w
Determine a) the initial and final pressure b) the total energy (via electric work) added to the water c) the total boundary work done; and d) the t