Advanced R Programming for Data Analytics in Business Week 4 Answers Nptel
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Advanced R Programming for Data Analytics in Business Week 4 Answers (July-Dec 2025)
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Question 1. Compute the magnitude of critical value z value for 90% confidence.
a) 1.41–1.50
b) 1.51–1.60
c) 1.61–1.70
d) 1.71–1.80
e) 1.81–1.90
Question 2. Compute the standard error of the sampling distribution for 95% confidence.
a) 1.5–1.7
b) 1.7–1.9
c) 1.9–2.1
d) 2.1–2.3
e) 2.3–2.5
Question 3. Compute the margin of error (MO) for 95% confidence using the information in the previous questions 1–2.
a) 1–2
b) 2–3
c) 3–4
d) 4–5
e) 5–6
Question 4. Compute 95% confidence interval using the information in the previous questions 1–3.
a) 90.08–99.52
b) 91.08–98.92
c) 78.08–85.92
d) 87.80–92.20
e) 93.08–97.02
Question 5. Formulate the null (H₀) and alternate (Hₐ) hypotheses.
a) H₀: µ ≥ 500 and Hₐ: µ < 500
b) H₀: µ ≤ 500 and Hₐ: µ > 500
c) H₀: µ = 500 and Hₐ: µ ≠ 500
d) H₀: µ ≥ 500 and Hₐ: µ > 500
e) H₀: µ ≤ 500 and Hₐ: µ < 500
Question 6. Compute the standard error (S) of the sampling distribution.
a) 0–2
b) 2–4
c) 4–6
d) 6–8
e) 8–10
Question 7. Compute the sample z statistic.
a) –7.00 to –6.00
b) –6.00 to –5.00
c) –5.00 to –4.00
d) –4.00 to –3.00
e) –3.00 to –2.00
Question 8. Compute the p-value of the sample using the z value from Question 7.
a) 0.00–0.01
b) 0.01–0.05
c) 0.05–0.10
d) 0.10–0.50
e) 0.50–0.90
Question 9. Consider a significance level = 10%, compute the critical z value.
a) –3.00 to –2.50
b) –2.50 to –2.00
c) –2.00 to –1.50
d) –1.50 to –1.00
e) –1.00 to –0.50
Question 10. Based on the information in previous questions (5–9), what is the decision rule at 10% level of significance?
a) Reject null, accept alternate
b) Fail to reject null, reject alternate
c) Accept null, reject alternate
d) None of the above
These are Advanced R Programming for Data Analytics in Business Week 4 Answers Nptel
