A Local Retail Business Wishes to Determine If There Is $\neq$

question 87

Multiple Choice

A local retail business wishes to determine if there is a difference in preferred indoor temperature between men and women. A random sample of data is collected, with the following results (note: there are slight differences between Excel and MegaStat output in this test) :
Using a 0.05 level of significance, can we conclude that there is indeed a difference in the temperature that men prefer compared to women?
What is the null hypothesis if we assume men to be group 1 and women group 2?

• A) µ₁ = µ_2, or µ_d = 0
• B) µ₁ \(\neq\) µ_2, or µ_d \(\neq\) 0
• C) µ₁ - µ₂ \(\le\) 20
• D) µ₁ - µ₂ > 20

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Definitions:

Friendships

Relationships based on mutual affection, respect, and trust, typically offering companionship and support between individuals.

Evolutionary Pressure

Forces or factors that influence the chances of survival and reproductive success of organisms, leading to natural selection and evolution.

Successful Pregnancy

A pregnancy that results in the birth of a living infant who is carried to full term without significant complications.

Replacement Level

The fertility rate at which a population exactly replaces itself from one generation to the next, without migration.