A sample of 30 households showed that the sample mean of back-to-school spending is $622.85. It is believed that back-to-school spending is normally distributed with a population standard deviation of $65. An analyst wishes to test if the average back-to-school spending differ from $606.40 per family predicted by the trade group at the 5% significance level.

The text editor is not letting me submit my typed answer.Please check attachment

The pvalue is 1.646 which is greater than the level of significance 0.05

This tells us to accept the null hypothesis.

P-value is 0.1646 > significance level.

We do not reject the null hypothesis.

So we can not say that average back to school spending is different from 606.4 dollars per family

which World tool will allow you to quickly count number of words in your document
A) Thesaurus
B) Show and hide
C) word count
D) line spacing ​

What does the term Gestalt mean? A. image B. graph C. big D. part E. whole

Hey guys!

Just a quick question I’m not 100% sure about

T/F

ROM stores data that the user is currently working on.

Thank you so much!!

If you can’t help here iz a happ kat :)

Which of the following is a system management tool?

Define the following
chatting
browsing
E-commerce​