A University Lecturer Claims That Students Who Attend Lecturers Score

question 21

Essay

A university lecturer claims that students who attend lecturers score a higher final mark in her course than students who watch the lecture recordings online. The lecturer takes a random sample of the final marks of 40 students who attended her university lectures and found their average mark was 65 with a standard deviation of 5. The lecturer takes a random sample of 30 university students who watched the lecture recordings online and found their average mark was 60 with a standard deviation of 8. Is there significant evidence to support this university lecturer's claim? Test at the 5% level of significance, assuming that the population variances are unequal.

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Definitions:

Prolonged Immobility

Extended periods of inactivity or lack of movement, often leading to health complications like blood clots and muscle atrophy.

Peripheral Pulses

The palpable pulsations of arteries located away from the heart, commonly checked in the wrists and feet to assess circulatory health.

Cast Removal

The process of safely removing a cast that was applied to support and protect a broken bone during the healing process.

Atrophied Muscles

Muscle wasting or decrease in muscle mass due to lack of use, disease, or injury.