Which of these is the x-intercept of x = 3?
1 answer:
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Answer:
0.6
Step-by-step explanation:
1. Since Avery got 18 out of 30 questions right, we can write that as a fraction of .
2.
3.
4.
5.
Answer:
The P-value for this test is P=0.2415.
Step-by-step explanation:
We have to perform an hypothesis testing on the mean of alla account balances.
The claim is that the mean of all account balances is significantly greater than $1,150.
Then, the null and alternative hypothesis are:
The sample size is n=20, with a sample mean is 110 and standard deviation is 125.
We can calculate the t-statistic as:
The degrees of freedom fot this test are:
For this one-tailed test and 19 degrees of freedom, the P-value is: