Opening the paper…

Statistics for Data Science II, End Term

May 2025 term, 14 Sept 2025, Set 1

Learning mode

Question 1

+1−0Single correct

Figure from the original question paper

Figure from the original question paper

Figure from the original question paper

Figure from the original question paper

Figure from the original question paper

Figure from the original question paper

Figure from the original question paper

Figure from the original question paper

Figure from the original question paper

Figure from the original question paper

Select one option

A.
Useful Data has been mentioned above.
B.
This data attachment is just for a reference & not for an evaluation.

Report a problem

to report a problem with this question.

Choose a question

Answered: 0
Not answered: 1
Marked for review: 0
Answered & marked for review: 0
Not visited: 26

Discussion

Submit this paper?

You cannot change your answers after submitting.

Answered: 0
Not answered: 1
Marked for review: 0
Answered & marked for review: 0
Not visited: 26

Instructions

The palette shows the status of every question. Pick a number to go straight to it.

Answered: 0
Not answered: 1
Marked for review: 0
Answered & marked for review: 0
Not visited: 26

Save & Next moves to the next question. Answers are saved as you go.
Mark for Review & Next flags the question to come back to. A flagged answer still counts.
Clear Response removes your answer to the question on screen.
The ← and → keys move to the previous and next question.

Figure from the original question paper Figure from the original question paper Figure from the original question paper Figure from the original question paper Figure from the original question paper A supermarket manager claims that the average billing time for customers is 12 minutes with a known standard deviation of 3.5 minutes. To verify this claim, a random sample of 49 customers was studied, showing an average billing time of 12.9 minutes. Let the null and alternative hypothesis be: ; . Find the P-value. Enter the answer correct to two decimal places. Consider the samples {1, 3, 4, 6, 2} taken from a Poisson Distribution with an unknown parameter . Using a Gamma(5, 8) prior, find the posterior distribution of .