i think maybe 2,7 Sorry if i’m wrong
Answer: 0.0108
Step-by-step explanation:
Given :
Since the alternative hypotheses is right-tailed, so the test is a right-tailed test.
Sample size : n=30
The degree of freedom for t-distribution=
The by using the normal t-distribution table , we have
The P-value corresponds to t-statistic vale 2.43 and degree of freedom 29 , is 0.01075997 i.e. approximately 0.0108
Answer:
60
Step-by-step explanation:
Given that :
Total crop on corn plot = 1500
Total on soya bean plot = 3000
Total on grass plot = 500
Total plants = 5000
A Stratified sample of 200 corn plants is to be selected ;
Number of samples he takes from each plot:
Percentage of number of samples :
x% of 5000 = 200
0.01x * 5000 = 200
50x = 200
x = 200/50
x = 4%
Hence, number of plants to be selected from corn plot :
4% of 1500
0.04 * 1500
= 60
Answer:
3/5
Step-by-step explanation:
19/20 - 7/20
Since the denominator is the same we can subtract the numerators
12/20
Divide the top and bottom by 4 to simplify
12/4 =3
20/4 =5
The fraction becomes 3/5