Qnt 561 week 3 mcgrawhill questions latest 2016 version


8-2

 

The aftercited is a catalogue of 29 hospitals in the Cincinnati (Ohio) and Northern Kentucky region

a.       A  specimen of five hospitals is to be haphazardly clarified. The haphazard bulk are 09, 16, 00, 49, 54, 12, and 04. Which hospitals are interposed in the specimen?

b.      A specimen of five hospitals is to be haphazardly clarified. The haphazard bulk are 09, 16, 00, 49, 54, 12, and 04. Which hospitals are interposed in the specimen?

 

 

8-8

A population consists of the aftercited five admires, 2,2,3,5,7

a.       List  all specimen of  dimension 3,  and scold the average of each specimen

b.      Compute the average of the arrangement of specimen averages and population average

 

 

8-12

A specimen of five hospitals is to be haphazardly clarified. The haphazard bulk are 09, 16, 00, 49, 54, 12, and 04. Which hospitals are interposed in the specimen?

 

Compute the average of the population

8-16

A usual population has a average of 75 and a flag deflexion of 5.  You choice a specimen of 40

Compute the likelihood the specimen average is

a.       Less than 74

b.      Between 74 and 76

c.       Between 76 and 77

d.      Greater than 77

9-4

Suppose you comprehend σ and you shortness an 85% reliance smooth. What admire would you use as z in formula of reliance space-between for a population average?

 

 

9-6

A inquiry resolute conducted a review to determine the average whole well-regulated smokers consume on cigarettes during a week. They rest the arrangement of wholes gone-by per week followed the usual arrangement delay a population flag deflexion of $5. A specimen of 64 well-regulated smokers inspired that  xbar = 20

 

What is the 95% reliance space-between admire  of mu

 

 

 

9-10

Use Appendix B.5 to fix the admire of t beneath the aftercited conditions. (Round your answers to 3 decimal places.)

a.       The specimen dimension is 15 and the smooth of reliance is 95%

b.      The specimen dimension is 24 and the smooth of reliance is 98%

c.       The specimen dimension is 12 and the smooth of reliance is 90%

 

9-26

Past reviews unearth that 30% of tourists going to Las Vegas to gamble consume more than $1,000. The Visitor’s Bureau of Las Vegas shortnesss to update this percentage.

a.       The new consider is to use the 90% reliance smooth. The admire is to be delayin 1% of the population interrelationship. What is the inevitable specimen dimension?

b.      The Bureau feels the specimen dimension rooted over is too comprehensive. What can be manufactured to weaken the specimen? Based on your impulse, recalculate the specimen dimension. (Hint: Use an lawful deception in the order of 0.01 to 0.05)

 

 

9-28

Forty-nine items are haphazardly clarified from a population of 500 items. The specimen average is 40 and the specimen flag deflexion 9.

Develop a 99% reliance space-between for the population average