A Fund Manager Wants to Know If It Is Equally

question 52

Multiple Choice

A fund manager wants to know if it is equally likely that the Dow Jones Industrial Average will go up each day of the week.For each day of the week,the fund manager observes the following number of days when the Dow Jones Industrial Average goes up. Using the critical value approach,the decision and conclusion are

• A) reject the null hypothesis;not all of the proportions are the same
• B) reject the null hypothesis;all of the proportions are not the same
• C) do not reject the null hypothesis;all of the proportions are the same
• D) do not reject the null hypothesis;we cannot conclude that not all of the proportions are the same

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Definitions:

Key Off

A term referring to the state of an automotive ignition system when the key is turned to the off position, cutting power to the engine.

Ground Battery Cable

A cable that connects the negative terminal of a battery to the chassis of a vehicle to complete the electrical circuit.

Battery Drain

A condition where a vehicle or device's battery loses charge due to electrical devices consuming power, often when the engine or main power source is off.

Electrical Loads

Devices or components in an electrical circuit that consume electric power, such as lights, appliances, and machines.