Develop the Null and Appropriate Hypotheses That Are Most Appropriate

question 4

Essay

Develop the null and appropriate hypotheses that are most appropriate for each of the following situations:
a. A meteorologist claims that the average high temperature for the month of August in Montreal is 27°C. If the residents of Montreal do not believe this to be true, what hypotheses should they test?
b. A car manufacturing plant is acting in accordance with the public's interest in making cars that have fuel consumption of at most 8.2 litres per 100 km. The supervisor will let the cars off the manufacturing floor only if the fuel consumption is less than 8.8 L/100 km. What hypotheses should the plant test?
c. A spokesperson for the Health Department reports that a fish is unsafe for human consumption if the polychlorinated biphenyl (PCB) concentration exceeds 5 ppb. The Carlson family is interested in the mean PCB concentration in a fish from the lake on which they live. What hypotheses should they test?
d. An Internet survey revealed that 50% of Internet users received more than 10 email messages per day. A similar study on the use of email was repeated. The purpose of the study was to see whether use of email has increased.

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Definitions:

Integrated Communications

A coordinated approach that ensures all forms of communications and messages are carefully linked together, reinforcing a consistent message across multiple channels.

Proactive Outreach

An approach involving the initiation of actions and communication aimed at building relationships or addressing potential issues before they arise.

Targeted Pitching

A strategic approach in public relations and marketing where communications are specifically directed towards a particular audience or demographic.

Social Media Posts

Content created and shared on social media platforms to engage users, build communities, or promote products or services.