Answer:
Ik this isn't an answer but wanted to say good luck im battling stuff too :(
Step-by-step explanation:
Answer:
A 99% confidence interval will be wider than a 95% confidence interval
Step-by-step explanation:
From the question we are told that
The 95% confidence interval for for the mean foot length for students at the college is found to be 21.709 to 25.091 cm
Generally the width of a confidence interval is dependent on the margin of error.
Generally the margin of error is mathematically represented as
From the above equation we see that
Here
is the critical value of the half of the level of significance and this value increase as the confidence level increase
Now if a 99% confidence level is used , it then means that the value of
will increase, this in turn will increase the margin of error and in turn this will increase the width of the confidence interval
Hence a 99% confidence interval will be wider than a 95% confidence interval
1.D, both.
not sure of the other though
Answer:
x = 10.5
Step-by-step explanation:
Work in the screenshots
I used a online calculator
symbolab. com
Answer:
tSubstitution Property of Equality
Step-by-step explanation:
I took the test and that was the answer