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:

Heuristic Bias

Cognitive shortcuts used by individuals that can lead to systematic errors or biases in judgment and decision-making.

Availability

The state of being easily obtainable or accessible when needed.

Anchoring

A cognitive bias that describes the tendency to rely too heavily on the first piece of information offered (the "anchor") when making decisions.

Person Schemas

Cognitive structures that represent one's knowledge and expectations about others, influencing how we process information about them.