Basic Stat, Mathematics

Assignment Help:
You have been research for your statistics class on how nervous the American adults are in general, you have decided to use HINTS 2007 data set that has a scale (going from 0 to 24)measuring the psychological distress of the respondents.

a. According to HINTS 2007 data, the average psychological distress score, for this sample size of 1,390, is 4.75, with a standard deviation of 4.5. Construct the 95 % confidence interval for the true psychological distress of the respondents.

b. One of your classmates, who claims to be good at statistics, complaint about your confidence interval calculation. She asserts that the psychological distress scores are normally distributed, which in turns makes the confidence interval calculation meaningless. Assume that she is correct about her distribution of psychological distress scores. Does that imply that the calculation of a confidence interval is not appropriate? why?or why not?

Related Discussions:- Basic Stat

Determine the length of the rectangle, The height of a rectangle is 20 cm. ...

The height of a rectangle is 20 cm. The diagonal is 8 cm more than the length. Determine the length of the rectangle. a. 20 b. 23 c. 22 d. 21 d. To determine the len

Square root., i dont get these questions they are hard for me

i dont get these questions they are hard for me

Geometry, how to do proving of rectilinear figures?..

how to do proving of rectilinear figures?..

Comparison test - sequences and series, Comparison Test Assume that we...

Comparison Test Assume that we have two types of series ∑a n and ∑b n with a n , b n ≥ 0 for all n and a n ≤ b n for all n.  Then, A.  If ∑b n is convergent then t

Lim.., how can solve limits

how can solve limits

Geometry, find h in the parallelogram

find h in the parallelogram

Division, Why do we start dividion operation from left to right?

Why do we start dividion operation from left to right?

Trignometry, verify 4(sin^4 30^0+cos60^0 )-3(cos^2 ?45?^0-sin^2 90^0 )=2

verify 4(sin^4 30^0+cos60^0 )-3(cos^2 ?45?^0-sin^2 90^0 )=2

SIMPLE INTEREST, A payday loan company charges a $95 fee for a $500 payday ...

A payday loan company charges a $95 fee for a $500 payday loan that will be repaid in 11 days. Treating the fee as interest paid, what is the equivalent annual interest rate?

How do children learn maths?, HOW DO CHILDREN LEARN? : Have you ever tried...

HOW DO CHILDREN LEARN? : Have you ever tried teaching a young child what "ball" means? Did you do it by a lot of verbal description" Or did you let the child actually handle a b

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd