Question
A person scores an 83 in round 2 on American Idol auditions after participating in vocal lessons. The scores of participants in general on this
A person scores an 83 in round 2 on American Idol auditions after participating in vocal lessons. The scores of participants in general on this measure are normally distributed with a mean of 70 and a standard deviation of 8. The researcher predicts an effect but not a particular direction. Using the 1% significance level, what can you conclude?
Group of answer choices
We accept the null hypothesis and state that vocal lessons significantly increased scores in round 2 auditions.
We reject the null hypothesis and state that vocal lessons significantly decreased scores in round 2 auditions.
We reject the null hypothesis and state that vocal lessons significantly increased scores in round 2 auditions.
We accept the null hypothesis and state that vocal lessons did not affect scores in round 2 auditions.
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started