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Alexxandr
17 days ago
5

An experiment was done to look at whether there is an effect of the number of hours spent practising a musical instrument and ge

nder 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?’). An ANOVA was conducted on these data, and the results revealed significant main effects of gender and the number of hours spent practising. Which of the following contrasts could we use to break down the effect of gender?
A- Helmert contratst
B- Simple contrast
C- Repeated contrast
D- None
Mathematics
1 answer:
Svet_ta [9.4K]17 days ago
8 0

Answer: Repeated contrast

Step-by-step explanation:

The conducted two-way ANOVA involved 30 participants, split evenly between 15 males and 15 females, all of whom had no prior experience with musical instruments.

This ANOVA analysis included repeated measures and considered within-group effects, between-group effects, and interaction effects. The findings indicated a significant main effect based on gender and the hours practiced. Therefore, the repeated contrast approach will be employed to assess the gender influence. This method evaluates the mean of each level in relation to the next, excluding the final level.

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Note. The original question with options given on the bottom

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F - 1, B - 2, A - 3, D - 4, C - 5, E - 6

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F. Sample

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B. Population  

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A. Statistic  

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Question

A bank manager is interested in the average length of time that customers are willing to wait in line before they give up and leave the bank. Match the vocabulary word with its corresponding example.

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1. The 25 customers that the manager observed leave

2. All of the bank's customers

3. The average length of time that the 25 customers waited before leaving the bank

4. The average length of time that all customers will wait before leaving the bank

5. The list of times for the 25 customers who left the bank

6. The length of time a customer waits before leaving the bank

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  • A. Statistic
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