An Experiment Was Done to Look at Whether There Is

question 6

Multiple Choice

An experiment was done to look at whether there is an effect of the number of hours spent practising a musical instrument and gender on the level of musical ability.A sample of 30 (15 men and 15 women) participants who had never learnt to play a musical instrument before were recruited.Participants were randomly allocated to one of three groups that varied in the number of hours they would spend practising every day for 1 year (0 hours,1 hours,2 hours) .Men and women were divided equally across groups.All participants had a one-hour lesson each week over the course of the year,after which their level of musical skill was measured on a 10-point scale ranging from 0 (you can't play for toffee) to 10 ('Are you Mozart reincarnated?') .Which of the following sentences regarding the ANOVA output below is correct?

• A)Practicing for 2 hours per day significantly increased skill level compared to when only 1 hour was spent practising per day.
• B)Any amount of time spent practising significantly decreased skill level compared to when no time was spent practising.
• C)Any amount of time spent practising significantly increased skill level compared to when no time was spent practising.
• D)Practicing for 2 hours a day significantly decreased skill level compared to when only 1 hour was spent practising a day.

---

Definitions:

Taxable Income

The amount of an individual's or business's income used to determine how much tax they owe to the government, after deductions and exemptions.

Peter Drucker

A renowned management consultant, educator, and author, considered one of the founding figures of modern business management.

Individual Retirement Accounts (IRAs)

Tax-advantaged investing tools that individuals use to earmark funds for retirement savings.

Tax-exempt Contributions

Donations made to qualifying organizations that can be deducted from taxable income because the recipient is exempt from taxes.