Cell: +1 (714) 584-4466

write and edit the answers for the following Question.

Help me study for my Statistics class. I’m stuck and don’t understand.

Don't use plagiarized sources. Get Your Custom Essay on
write and edit the answers for the following Question.
Just from $9/Page or 300 words
Order Now

Q 1

Parking Hoping to lure more shoppers downtown, a city builds a new public parking garage in the central business district. The city plans to pay for the structure through parking fees. During a two-month period (44 weekdays), daily fees collected averaged $126, with a standard deviation of $15.

a) What assumptions must you make in order to use these statistics for inference?

b) Write a 90% confidence interval for the mean daily income this parking garage will generate.

c) Interpret this confidence interval in context.

d) Explain what “90% confidence” means in this context.

e) The consultant who advised the city on this project predicted that parking revenues would average $130 per day. Based on your confidence interval, do you think the consultant was correct? Why?

Answer link…

Q 2


Some students checked 6 bags of Doritos marked with a net weight of 28.3 grams. They carefully weighed the contents of each bag, recording the following weights (in grams): 29.2, 28.5, 28.7, 28.9, 29.1, 29.5.

a) Do these data satisfy the assumptions for inference? Explain.

b) Find the mean and standard deviation of the weights.

c) Create a 95% confidence interval for the mean weight of such bags of chips.

d) Explain in context what your interval means.

e) Comment on the company’s stated net weight of 28.3 grams.

Answer link…

Looking for a similar assignment? Get help from our nursing qualified experts!

Order Now

Open chat
Get help
You can now contact our live agent via whatsapp! ping +1 (714)-584-4466.
You will get plagiarism free custom written paper