Your Company Is Evaluating Two Cloud-Based Secured Data Storage Services $\sigma$

question 68

Multiple Choice

Your company is evaluating two cloud-based secured data storage services."Pie in the Sky," the newer service,claims its uploading and downloading speeds are faster than the older service,"Cloudy but Steady Skies." You need to make a decision based on published access times for both services at different times and for varying file sizes.To make your decision,you purchase a statistical study,which indicates that average download time for Pie in the Sky is 0.77 sec.per MB and for Cloudy but Steady Skies is 0.84.Assume that n₁ = n₂ = 50, $\sigma$ ₁ = 0.2 and $\sigma$ ₂ = 0.3.With $\alpha$ = .05,the observed z value is ______.

• A) −9.71
• B) −1.37
• C) −0.7
• D) 1.37
• E) 1.96

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Definitions:

Language Production

The process of verbalizing thoughts and feelings, which involves the complex coordination of linguistic, cognitive, and neuromuscular systems.

Language Comprehension

The ability to understand spoken, written, or signed language, including the understanding of words, phrases, and the overall meaning of a text or speech.

Comprehension Precedes

The concept that understanding or grasping a concept or language must occur before it is possible to use it effectively in communication or application.

Morphemes

The smallest grammatical units in a language that carry meaning, such as "un-", "break", and "-able" in the word "unbreakable".