NPTEL — National Programme on Technology Enhanced Learning

Hypothesis testing of means

Compares tests concerning means, including different treatments of known and unknown variability. The inspected worked material includes paired measurements and R plots, drawing attention to how observations are related.

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NPTEL — National Programme on Technology Enhanced Learning Speaker not established intermediate Duration unknown

Why it is here

Shows why paired measurements and separate groups need different analysis choices.

Selection basis: institutional collection. Reason checked 2026-11-07 by agent.

Source and access

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1024-byte range from the officially listed MP4, HTTP 206, matching content range and MP4 header. No full playback or decoding; YouTube availability is unknown.

Access evidence
accessible · official media range
Checked
2026-11-07
Full playback observed
No
Uploaded
Unknown
Originally recorded
Unknown
Language
Unknown
Level basis
Editorial judgement, not an official difficulty label. The checked content uses normal-based tests, variance assumptions and paired data.
Transcript
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Provenance and reuse

NPTEL — National Programme on Technology Enhanced Learning; original source https://nptel.ac.in/courses/103106120. Link to official source, title, attribution and original atlas annotations. Do not copy source code, rehost video, or copy full course prose into the public export.. Links, factual metadata and original navigation annotations only. No source page, transcript, image, video or restricted platform metadata is included in the reusable export.

  1. nptel-download-inventory-3b1195bab4db29fc

    Official download inventory maps this course and lesson to the MP4 alternative; source title agreement recorded. Retrieved 2026-11-07.

  2. nptel-media-eaf800b0ce038577

    The first 1 KiB of the official source-listed MP4 was accessible with a valid MP4 header. This is not full playback, decoding, watching, or an assurance about every byte. Retrieved 2026-11-07.

  3. nptel-source-9f56fef8aefd9490

    ordered lecture title and parent-course syllabus; no video viewed or transcript read Retrieved 2026-11-07.

  4. nptel-transcript-103106120-11

    Selected excerpts only: segment 0 (header) first 186 characters; segment 1 (00:09) first 636 characters; segment 12 (18:06) first 519 characters; segment 23 (40:14) first 1400 characters. No complete transcript reading or full video viewing claimed. Retrieved 2026-11-07.

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