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ruslelena [56]
3 years ago
9

F 9 H 10 7 G P y R 3.5 Q

Mathematics
1 answer:
sveta [45]3 years ago
4 0

Answer:

R 3.5

Step-by-step explanation:

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A poultry farmer wishes to estimate the average incubation period (the number of days between a hen laying her egg and the time
sergiy2304 [10]

Answer:

49 eggs.

Step-by-step explanation:

The formula for Margin of Error =

z × standard deviation/√number of samples

z = z score of 98% confidence interval = 2.326

Margin of Error = Half a day = 1/2day = 0.5 day

Standard deviation = 1.5 days

Number of samples = number of eggs he needs to sample = unknown.

Imputing these above values into the formula

Margin of Error = z × standard deviation/√number of samples

0.5 = 2.326 × 1.5/√n

Cross Multiply

0.5 × √n = 2.326 × 1.5

√n = 2.326 × 1.5/0.5

√n = 3.489/0.5

√n = 6.978

Square both sides

(√n)² = 6.978²

n = 48.692484

n ≈ Approximately to the nearest whole number = 49

Therefore, the number of eggs he needs to sample to create the desired interval is approximately to the nearest whole number 49 eggs

8 0
3 years ago
Explain why the formula for sample variance is different from the formula for population variance. Why is it inappropriate to us
Aliun [14]

Step-by-step explanation:

The difference in the formula of population and sample variance can be explained as:

Population variance is said to be the value of variance that is calculated from population data, whereas sample variance refers to the variance calculated from sample data. This is the reason why value of denominator in the formula for variance in case of sample data is ‘n-1’, while it is ‘n’ for population data. Hence, the result of both variance and standard deviation derived from sample data is larger than those found out from population data.

3 0
2 years ago
If perimeter of a rectangle is 48 cm.what is the area
anzhelika [568]
48 divide by 4 sides = 12
12 x 12 = 144cm squared
5 0
3 years ago
Read 2 more answers
Please help me 30 points to whoever can do this geometry work sheet please help me I’m so tired
marissa [1.9K]
This is algebra and too blurry to see. for 12 you have
4/3x-1/2x=-5 so 8x-3x/6=-5 and 5x/6=-5 so x=-6
4 0
3 years ago
Can you please help
Dmitry [639]

Answer is in the file below

tinyurl.com/wpazsebu

4 0
2 years ago
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