Answer:
Step-by-step explanation:
Bethany uses 8% of her paycheck to pay for gas. If she spent 34.12 on gas this week how much was her paycheck?
1 answer:
Answer: 426.5
Step-by-step explanation:
You know that she spent 34.12 on gas and you also know that that amount of money was the 8% of her paycheck.
Therefore, keeping the above on mind, you can write the following expression, where is the total amount of money of her paycheck:
When you solve for , you obtain the result shown below:
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Solution :
To claim to be tested is whether "the mean salary is higher than 48,734".
i.e. μ > 48,734
Therefore the null and the alternative hypothesis are
and
Here, n = 50
s = 3600
We take , α = 0.05
The test statistics t is given by
t = 2.15
Now the ">" sign in the sign indicates that the right tailed test
Now degree of freedom, df = n - 1
= 50 - 1
= 49
Therefore, the p value = 0.02
The observed p value is less than α = 0.05, therefore we reject . Hence the mean salary that the accounting graduates are offered from the university is more than the average salary of 48,734 dollar.