Do you think use of computers would enhance 'autonomy' of learners? Present your arguments with examples of any two software you have used.

Explain the term, 'animation'. Describe its use in education with examples.

Define ‘Artificial Intelligence’? Discuss expert systems that use the principles of artificial intelligence

Sect a topic of your choice. How will you use technology/ies to teach selected the topic. Give the detailed plan of teaching.

Discuss the nature of classroom communication with suitable examples.

Explain the main equipment used in an audio studio.

Suppose you are a teacher of Educational Technology and want to evaluate the effectiveness of educational technologies being used in your institution. Describe the steps that you will follow while evaluating educational technologies. Support you answer with an example.

Explain the importance of video programmes in the teaching-learning process. Describe, with an example, how you can utilize a video programme effectively in transacting curricular experiences.

Explain the concept of Educational Technology. Describe how Educational Technology has evolved through different phases.

A manufacturer wishes to determine the effectiveness of four types of machines (A, B, C and D) in the production of bolts. To accumulate this, the numbers of defective bolts produced for each of two shifts in the results are shown in the following table:

Perform an analysis of variance to determine at 5% level of significance, whether there is a difference (a) Between the machines and (b) Between the shifts.

A sample of 100 villagers is to be drawn from a population of villages A and B. The population means and population mean squares of their monthly wages are given below:

Find the number of samples using Proportional and Neyman allocation techniques and compare. Obtain the sample mean and variances for the Proportional Allocation and SRSWOR for the given information. Then Find the percentage gain in precision of variances of sample mean under the proportional allocation over that of SRSWOR.

By generating 10 uniform random variate U (0, 1) estimate the integral

Recognizing this function as probability density function of N (0, 1), compare the value of  ^ with .

An experiment was planned to study the effect of Sulphate, Potash and Super Phosphate on the yield of potatoes. All the combinations of 2 levels of Super Phosphate [0 cent (p0) and 5 cent (p1)/ acre] and two levels of Sulphate and Potash [0 cent (k0) and 5 cent (k1)/acre] were studied in a randomised block design with 4 replications each. The (1/70) yields [lb per plot = (1/70) acre] obtained are given in table below:

Analyse the data and give your conclusions.

Three varieties A, B and C of wheat are shown in five plots each of the following fields per acre as obtained:

Set up a table of analysis of variance and find out whether there is significant difference between the fields of these varieties.

To determine the yield rate of wheat in a district of Punjab, 6 groups were constructed of 6 plots each. The data is given in the following table:

Select a cluster sample of 3 clusters from the given data and find sample mean.

In a class of Statistics, total number of students is 30. Select the linear and circulur systematic random samples of 10 students. The age of 30 students is given below:

Assume that you have to perform a sample survey for Family expenditure of the faculty of Indira Gandhi National Open University. Then explain the main steps involved in the planning and execution of that sample survey.

State whether the following statements are true or false and also give the reason in support of your answer.
c) In SRSWOR, the possible numbers of sample of size n from a population of size N if sampling is done with replacement is Nn
d) One-way analysis of variance is a generalization of the two sample t-test.
e) If experimental error is reduced considerably and the efficiency of the design is decreased.
f) If strata are heterogeneous then stratified sampling schemes provides estimates with greater precision.
g) If one wants to convert random numbers selected from two digit numbers 00-99 to uniformly distributed U (0, 1) variables then one has to divide them by 99.

State whether the following statements are true or false and also give the reason in support of your answer.
c) In SRSWOR, the possible numbers of sample of size n from a population of size N if sampling is done with replacement is Nn
d) One-way analysis of variance is a generalization of the two sample t-test.
e) If experimental error is reduced considerably and the efficiency of the design is decreased.
f) If strata are heterogeneous then stratified sampling schemes provides estimates with greater precision.
g) If one wants to convert random numbers selected from two digit numbers 00-99 to uniformly distributed U (0, 1) variables then one has to divide them by 99.

A company is trying to improve the work efficiency of its employees. It has organized a special training programme for all employees. In order to assess the effectiveness of the training programme, the company has selected 10 employees randomly and administered a well-structured questionnaire. The scores (out of 100) obtained by the employees are given in the following table:

To examine whether the training programme has improved efficiency of the employees, give the answer of the following:

i) Are both samples are paired or independent?

ii) Formulate the null and alternative hypotheses.

iii) Which parametric test is used for testing the null hypothesis if it is known that the scores of the employees before and after the training programme follow the normal distribution? Conduct the test at 1% level of significance and conclude the result.

iv) Which non-parametric test is used for testing the null hypothesis if it is known that the scores of the employees before and after the training programme do not follow the normal distribution but the distribution of the differences of scores before and after the training is symmetrical about its median? Conduct the test at 1% level of significance and conclude the result.