Read Each of the Following Essay Introductions

question 17

Multiple Choice

Read each of the following essay introductions. Then select the letter of the method the writer used to begin the composition. The essay below begins with a(n)
One day in 1946, Percy Spencer stuck a chocolate bar in his pocket and went to work. Later, standing next to the radar machine he was working on, he noticed that his chocolate bar had melted. Almost immediately, Spencer saw the possibilities, sent for unpopped popcorn, and invented the first microwave oven ⎯ marketed the following year as the "radar range." The microwave is just one of many important inventions created out of the interaction of two factors: a lucky accident and the presence of a trained person who understood what that accident meant.

• A) single-sentence thesis statement.
• B) contradiction.
• C) illustration.

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Definitions:

Null Hypothesis

A hypothesis that suggests there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.

Type I Error

The incorrect rejection of a true null hypothesis, also known as a "false positive" in statistical hypothesis testing.

Null Hypothesis

A hypothesis used in statistical testing that assumes no significant difference or effect exists between certain datasets or conditions.

Starting Salaries

The initial compensation that an employee receives when starting a new job, often determined by industry standards, job function, and experience level.