Suppose a Sample of N = 50 Items Is Selected

question 61

Multiple Choice

Suppose a sample of n = 50 items is selected from a population of manufactured products and the weight,X,of each item is recorded.Prior experience has shown that the weight has a probability distribution with μ= 6 ounces and σ = 2.5 ounces.Which of the following is true about the sampling distribution of the sample mean if a sample size of 15 is selected?

• A)The mean of the sampling distribution is 6 ounces.
• B)The standard deviation of the sampling distribution is 2.5 ounces.
• C)The shape of the sampling distribution is approximately normal.
• D)All of the above are correct.

Ability to identify operational definitions within experimental contexts.

Knowledge of the impact of confounding variables on research outcomes.

Understanding of the concept of double-blind studies and their importance in controlling biases.

Understand the historical and sociological impact of immigration in Canada.

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Definitions:

Metapopulations

A group of spatially separated populations of the same species which interact at some level, often considered in conservation biology and disease dynamics.

Lineages

Sequences of species that have evolved from a common ancestor, depicted in family trees showing evolutionary relationships.

Extrinsic Postzygotic Isolation

A reproductive barrier where offspring of two different species are viable and fertile, but external factors prevent them from thriving.

Mimetic

Relating to or involving mimicry, often used to describe organisms that imitate other species or their environment for survival benefits.