PLEASE I AM BEGGING YOU EXTRA POINTS AND BRAINLIEST!!!!!!!!!!!!!!!!!
2 answers:
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Answer:
The test statistic is
Step-by-step explanation:
From the question we are told that
The population mean is
The The level of significance is
The sample size is n = 18
The null hypothesis is
The alternative hypothesis is
The sample mean is
The standard deviation is
Generally the test statistics is mathematically represented as
substituting values
Answer:
There will be 213 songs in each group.
Step-by-step explanation:
Suppose, the number of songs in each group is
As he has 4 different groups of songs, so the t<u>otal number of songs in all 4 groups</u> will be:
Given that, the mp3 player has a <u>total of 852 songs</u>. So, the equation will be........
So, there will be 213 songs in each group.