A Consumer Product Magazine Recently Ran a Story Concerning the Increasing

question 31

Multiple Choice

A consumer product magazine recently ran a story concerning the increasing prices of digital cameras. The story stated that digital camera prices dipped a couple of years ago, but now are
Beginning to increase in price because of added features. According to the story, the average price
Of all digital cameras a couple of years ago was $215.00. A random sample of cameras was recently
Taken and entered into a spreadsheet. It was desired to test to determine if that average price of all
Digital cameras is now more than $215.00. The information was entered into a spreadsheet and the
Following printout was obtained: One-Sample T Test
Null Hypothesis: $\mu = 215$
Alternative Hyp: $\mu > 215$


Is a sample size $\mathrm { n } = 22$ large enough to utilize the central limit theorem in this inferential procedure?

• A) No, since either np or nq is less than 15
• B) Yes, since both np and nq are greater than or equal to 15
• C) Yes, since the central limit theorem works whenever means are used
• D) \(\mathrm { No }\), since \(\mathrm { n } < 30\)

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Definitions:

Cytoskeleton

Internal framework of the cell, consisting of microtubules, actin filaments, and intermediate filaments.

Organelles

Specialized structures within a cell that perform specific functions necessary for the cell's life, such as mitochondria and chloroplasts.

Chloroplasts

Organelles found in plant and algal cells that conduct photosynthesis, converting light energy into sugar.

Actin Filaments

Protein fibers that play a critical role in cell movement and shape, and are a major component of the cell's cytoskeleton.