At Present, Many Universities in Australia Are Adopting the Practice

question 4

Essay

At present, many universities in Australia are adopting the practice of having lecture recordings automatically available to students. A university lecturer is trying to investigate whether having lecture recordings available to students has significantly decreased the proportion of students passing her course. When lecture recordings were not provided to students, the proportion of students that passed her course was 80%. The lecturer takes a random sample of 25 students, when lecture recordings are offered to students, and finds that 11 students have passed the course. Is there significant evidence to support this university lecturer's claim? Use the p-value method and test at α = 0.01

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Definitions:

Histogram

A graphical representation of the distribution of numerical data, where the data is grouped into ranges and each range corresponds to a vertical bar.

Centers

Locations or points that are central within a larger area, often serving as focal points for activities or distribution.

Histogram

A graphical representation of the distribution of numerical data, where the data is grouped into bins or intervals.

Peaks

Points of maximum value or height in a distribution or dataset.