Quiz | Mathematics homework help


This is the 10 scrutinys of the quiz:

 

The EPA privileges that fluoride in children's drinking introduce should be at a average smooth of hither than 1.2 ppm, or accommodation per favorite, to subjugate the enumerate of dental cavities. Identify the Type I fallacy. (Points : 1)       
      
      
      

 

Medical researchers reviewing the lavish of demise for elderly patients vestibule dementia drugs base the aftercited postulates. Affect a .05 import smooth for examinationing the privilege that the proportions are not resembling. Also, affect the two rudimentary unpremeditated samples are dogged and that the provisions np ≥ 5 and nq ≥ 5 are pleased.

 

 

Dementia Drugs

Placebo

Number of patients

500

450

Total demises

23

12


 
Find the z examination statistic. Give your reply delay two decimals, e.g., 9.87 . (Points : 0.5)       
      
      
      

 

Use a .05 import smooth and the observed frequencies of 144 drownings at the beaches of a unpremeditatedly separated coastal say to examination the privilege that the enumerate of drownings for each month is resemblingly likely.

 

Jan

Feb

Mar

Apr

May

June

July

Aug

Sept

Oct

Nov

Dec

1

3

2

7

14

20

37

33

16

6

2

3


 
Do you decline the ineffectual theory, at the .05 import smooth? Enter Y for yes (reject), N for no (trip to decline). (Points : 0.5)       

 

 

Immune Modulator Cream

 

 

Cure

No Cure

Topical Steroid

Cure

25

11

Cream

No Cure

42

22

      
 

 

 

Use the aftercited technology show from a Two-Way ANOVA to reply this scrutiny. Biologists studying habitat use in Lepidopteran moths measured the enumerate of savannah moths base at three unpremeditatedly separated prairie footings delay two virtual habitat interferences (disquisition of row crops and grazing). Use a .05 import smooth.

 

Source

Df

SS

MS

F

P

Site

2

.1905

.0952

.0381

.9627

Habitat

1

304.0238

304.0238

121.6095

.0000

Site*Habitat

2

.1905

.0952

.0381

.9627


 
What is the compute of the F examination statistic for the footing property? (Points : 0.5)       [removed]