What the data means about the amount of money people spend on purchasing accessories for the their mobile phones is that;
on the average, people spend between 43 and 57 dollars on every accessory they buy.
<h3>Confidence Interval</h3>
We are told that;
Mean is $50
Standard deviation from the mean is $7
From the empirical rule, since standard deviation from the mean is $7, then we can conclude that the confidence interval is;
CI = 50 ± 7
CI = (50 - 7), (50 + 7)
CI = (43, 57)
In conclusion, this means that on the average, people spend between 43 and 57 dollars on every accessory they buy.
Read more about Confidence interval at; brainly.com/question/17097944
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Voters are influenced by sociological factors such as income, occupation, education, gender, age, religion, ethnic background, geography, and family. – Voters are also influenced by psychological factors such as political party identification, specific candidates, and key issues.
Susan bought a new computer. She purchased a mouse and earphones.
Using the Central Limit Theorem, it is found that the shape of the sampling distribution of the sample mean wingspan is normal.
<h3>What is the Central Limit Theorem?</h3>
It states that the sampling distribution of sample means of size n, from a normally distributed population with mean 
and standard deviation 
, is normally distributed with mean and standard error 
.
Hence, applying the <em>Central Limit Theorem</em> in this problem, the shape of the sampling distribution of the sample mean wingspan is normal.
More can be learned about the Central Limit Theorem at brainly.com/question/24663213
