Answer:
The maximal margin of error associated with a 95% confidence interval for the true population mean is 2.238.
Step-by-step explanation:
We have given,
The sample size n=42
The sample mean
The population standard deviation
Let be the level of significance = 0.05
Using the z-distribution table,
The critical value at 5% level of significance and two tailed z-distribution is
The value of margin of error is
The maximal margin of error associated with a 95% confidence interval for the true population mean is 2.238.
0.74 that answer I think you should go get your school for that hard
Answer:
C. -1 1/5
Step-by-step explanation:
1 3/5x -3/4=
8/5 - 3/4
2/5 -3/1= -6/5 =- 1 1/5