One Morning, John Drove 6 Hours Before Stopping to Eat $\quad 33 \mathrm { mph }$

question 47

Multiple Choice

One morning, John drove 6 hours before stopping to eat.After lunch, he increased his speed by 10 mph. If he completed a 390-mile trip in 9 hours of driving time, how fast did he drive in the morning?

• A) \(\quad 33 \mathrm { mph }\)
• B) \(\quad 36 \mathrm { mph }\)
• C) \(\quad 48 \mathrm { mph }\)
• D) \(\quad 43 \mathrm { mph }\)
• E) \(\quad 40 \mathrm { mph }\)

Understand the use and interpretation of critical values in hypothesis testing.

Calculate the standard deviation and mean from sample data.

Understand the differences between one-tailed and two-tailed tests.

Compute the standard error of the sample proportion or mean.

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Definitions:

Antistatic Brush

A tool designed to safely remove dust and static charge from electronic components and printed circuit boards (PCBs).

Rubber Roller Cleaner

A cleaning solution or tool designed specifically for maintaining and cleaning the rubber rollers within printers or other machinery, ensuring optimal performance and longevity.

MSDS

Material Safety Data Sheet, documents that describe the properties and hazards of a material, used to ensure safe handling and use.

SDS

Software-Defined Storage, a technology that manages and facilitates data storage resources and services independently from the underlying hardware.