Answer:
The 90 % confidence interval for the mean population is (11.176 ; 20.824 )
Rounding to at least two decimal places would give 11.18 , 20.83
Step-by-step explanation:
Mean = x`= 16 miles per hour
standard deviation =s= 4.1 miles per hour
n= 4
= 4.1/√4= 4.1/2= 2.05
1-α= 0.9
degrees of freedom =n-1= df= 3
∈ ( estimator t with 90 % and df= 3 from t - table ) 2.353
Using Students' t - test
x`±∈ *
Putting values
16 ± 2.353 * 2.05
= 16 + 4.82365
20.824 ; 11.176
The 90 % confidence interval for the mean population is (11.176 ; 20.824 )
Rounding to at least two decimal places would give 11.18 , 20.83
If the width of peter's garden is 32 yards, the ratio of the areas is 47: 32
<h3>Area of a rectangle.</h3>
area of rectangle = lw
where
Therefore,
Peter rectangular garden
Jorge is planting a square garden. The sides of Jorge's garden are equal to the width of Peter's garden.
Therefore,
The ratios are as follows;
(15 + x)x : x²
Therefore, if the width of peter's garden is 32 yards, the ratio of the areas is as follows:
(15 + 32)32 : 32²
1504: 1024
752: 512
376: 256
94:64
47: 32
learn more on rectangle here: brainly.com/question/23881202
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Answer:
0.065
Step-by-step explanation:
64.9 / 1000 = 0.0649 --> 0.065
Answer:
23 17 31
Step-by-step explanation:
igotitright
Answer: it can be written as 1.47x10-^3
Step-by-step explanation:
