For Questions , Use the Following Narrative

question 24

Multiple Choice

For Questions , use the following narrative
Narrative: Bread machines
Suppose a survey was done this year to find out what percentage of all Americans own a bread machine.Out of their random sample of 1,000 Americans, 317 own a bread machine.The margin of error for this survey was plus or minus 3%.
-{Bread machine narrative} Suppose three years ago, 29% of Americans owned a bread machine.Based on the results of this current survey, what would you conclude (with high confidence) about the population of all Americans now compared with three years ago?

• A)A larger proportion of Americans own a bread machine now compared to three years ago.
• B)A smaller proportion of Americans own a bread machine now compared to three years ago.
• C)The proportion of Americans who own a bread machine has not significantly changed from three years ago.
• D)None of the above.

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Definitions:

1-Hexyne

An alkyne hydrocarbon with the chemical formula C6H10, characterized by a triple bond between the first and second carbon atoms.

2-Hexanone

An organic compound, a ketone, with the formula C6H12O, known for its use as a solvent in various industrial applications.

Intense Peak

A significant and prominent peak in a spectrum or chromatogram, indicating a high concentration or abundance of a specific analyte.

Mass Spectrum

A chart or graph that displays the distribution of ions by mass in a sample, useful for identifying substances and determining their structure.