A manager of a local store wants to estimate the mean amount spent per shopping visit by
Customers. Summary statistics from a sample taken reveal the following:
If 95% and 98% conﬁdence intervals were developed to estimate the true shopping expenditure,
What differences would exist?
A) Standard errors
B) Interval widths
C) t-values
D) Both interval widths and t-values
E) Both standard errors and interval widths

Question

A manager of a local store wants to estimate the mean amount spent per shopping visit by
Customers. Summary statistics from a sample taken reveal the following: 
If 95% and 98% conﬁdence intervals were developed to estimate the true shopping expenditure,
What differences would exist?
A) Standard errors 
B) Interval widths 
C) t-values 
D) Both interval widths and t-values 
E) Both standard errors and interval widths

Quizplus · Accepted Answer

Both interval widths and t-values

A Manager of a Local Store Wants to Estimate the Mean