A Poll Reported That 3 Out of 50 First Year

question 5

Multiple Choice

A poll reported that 3 out of 50 first year university students surveyed did not have jobs,while 7 out of 50 second year university students did not have jobs during the academic year.

• A)P-value = 0.1836; If there is no difference in the proportions,there is about a 18.36% chance of seeing the observed difference or larger by natural sampling variation.
• B)P-value = 0.0918; If there is no difference in the proportions,there is about a 9.18% chance of seeing the exact observed difference by natural sampling variation.
• C)P-value = 0.0072; If there is no difference in the proportions,there is about a 0.72% chance of seeing the observed difference or larger by natural sampling variation.
• D)P-value = 0.1836; There is about a 18.36% chance that the two proportions are equal.
• E)P-value = 0.0613; There is about a 6.13% chance that the two proportions are equal.

Determine the probability of sample means under normal distribution assumptions.

Apply the central limit theorem to understand the sampling distribution of sample means.

Understand and calculate sampling distributions for specific population parameters.

Evaluate and critique sampling methods and inferences based on sample data, including judgment and quota samples.

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Definitions:

Babies

Very young offspring of humans, characterized by limited cognitive and physical abilities, requiring extensive care and nurturing.

Collection

The act of gathering items or data together, or an assemblage of objects or information.

Ratio

A quantitative relationship between two numbers, showing how many times one value contains or is contained within the other.

Household

A group of people, often a family, who live together in a single dwelling.