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

question 26

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 $\sigma$ ₁ = 0.2 and $\sigma$ ₂ = 0.3.With $\alpha$ = .05,the critical z value is ______.

• A) 1.645
• B) −1.645
• C) 1.96
• D) −1.96
• E) 2.33

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Definitions:

North to South

Describes a direction or orientation from the northern point towards the southern point on a map or geographical area.

Oceanic Crust

The part of the Earth's crust that underlies the ocean basins, composed primarily of basalt and gabbro, and is denser than continental crust.

Reversed Magnetic Polarity

A condition where the magnetic north and south poles swap positions, a phenomenon observed in the Earth's geological history.

Compass Needle

The magnetized pointer on a compass that aligns itself with the Earth's magnetic field to indicate the direction of magnetic north.