BECS-184 DATA ANALYSIS Solved Assignment 2022-2023
Tutor Marked Assignments
Course Code: BECS-184
Assignment Code: Asst /TMA /2022-23
Total Marks: 100
| Title Name |
BECS-184 Solved Assignment 2022-2023 |
| University | IGNOU |
| Service Type | Solved Assignment (Soft copy/PDF) |
| Course | BAG(Ability / Skill Enhancement Courses) |
| Language | ENGLISH |
| Semester | 2022-2023 Course: BA(Ability / Skill Enhancement Courses) |
| Session | For July 2022 and January 2023 Admission cycle |
| Short Name | BECS-184 (Ability / Skill Enhancement Courses) |
| Assignment Code | Asst /TMA /2022-23 |
| Product | Assignment of BAG(Ability / Skill Enhancement Courses) 2022-2023 (IGNOU) |
| Submission Date | For students of July cycle: 30 April For students of January cycle: 31 Oct |
Answer the following questions. Each question carries 20 marks
2 × 20 = 40
1. (a.) Compute and interpret the correlation coefficient for the following data:
X(Height) 12 10 14 11 12 9
Y (Weight) 18 17 23 19 20 15
(b) Explain step by step procedure for testing the significance of correlation coefficient.
2. (a.) A market research firm wants to estimate the share that foreign companies have in
Indian market for certain products. A random sample of 100 consumers is obtained and
34 people in the sample are found to be users of foreign made products, the rest are users
of domestic products. Give a 95% confidence interval for share of foreign products in the
market.
(b) A salesman made a profit of Rs. 245 on a showpiece A for which average profit has
been Rs. 200 with a standard deviation of Rs. 50. Later on the same day, he made a profit
of Rs. 620 on a showpiece B for which the average profit has been Rs. 500 with a
standard deviation of Rs. 150. For which of these two models is the salesman’s profit
relatively higher.
Assignment Two
Answer the following questions. Each question carries 12 marks.
5 X 12=60
3. a.) Discuss different measures of Central Tendency and the specific situation in which
they could be used.
b.) Marks of 20 students in Economics are: 70, 60, 80, 50, 65, 78, 81, 69, 72, 77, 58, 42,
62, 55, 82, 84, 64, 75, 59, 66 (Maximum marks are 100). Find the percentage of
marks of each student. Also find out mean, median and mode using spreadsheet
package. (Enclose screenshots of the spreadsheet in the assignment).
4. Explain the following:
a. Non sampling errors
b. Probability density curve
c. Type I and type II errors
d. Conjoint Analysis
5. a.) Frame a short questionnaire to identify social or economic impact of Covid 19 in your
locality?
b.) What are the various sources of Secondary data?
6. a.) What are the conditions when t test, F test or Z test are used?
b.) A random sample of 100 recorded deaths in India during the past year showed an
average life span of 71.8 years with a standard deviation of 8.9 years. Does this seem to
indicate that the average life span today is greater than 70 years? Use a 0.05 level of
significance.
7. Differentiate between:
a. Quantitative and Qualitative Research
b. Phenomenology and Ethnography
c. Techniques of univariate data analysis
d. ANOVA and MANOVA
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