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Greeley [361]
2 years ago
14

The results of a poll show that the true proportion of students who prefer the new schedule is likely in the interval (0.195,0.2

45).
What is the point estimate of the proportion of students who prefer the new schedule
Mathematics
1 answer:
mojhsa [17]2 years ago
4 0

The point estimate of the proportion of students who prefer the new schedule is 0.22.

Definition of Point Estimate

Point estimation is a technique used in statistics to determine a single value that will serve as the "best guess" or "best estimate" of an unidentified population characteristic, known as the point estimate. More precisely, in order to produce a point estimate, we apply a point estimator to the data.

For the confidence interval (0.195, 0.245), point estimate is calculated as follows,

p = (0.195 + 0.245) / 2

p = 0.44 / 2

p = 0.22

Hence, the point estimate of the proportion of students who prefer the new schedule comes out to be 2.2.

Learn more about point estimate here:

brainly.com/question/17514579

#SPJ1

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3 years ago
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3 years ago
The center of the circle is at (-2,-7) and its radius is 36.
Vanyuwa [196]
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(x-h)^2+(y-k)^2=r^2

r=36
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6 0
2 years ago
The moon is a sphere with radius of 959 km. Determine an equation for the ellipse if the distance of the satellite from the surf
Sergeeva-Olga [200]

Answer:

\frac{x^2}{1316^2}+\frac{y^2}{1669^2}=1

Step-by-step explanation:

An ellipse is the locus of a point such that its distances from two fixed points, called foci, have a sum that is equal to a positive constant.

The equation of an ellipse with a center at the origin and the x axis as the minor axis is given by:

\frac{x^2}{b^2}+\frac{y^2}{a^2} =1 \\\\where\ a>b

Since the distance of the satellite from the surface of the moon varies from 357 km to 710 km, hence:

b = 357 km + 959 km = 1316 km

a = 710 km + 959 km = 1669 km

Therefore the equation of the ellipse is:

\frac{x^2}{1316^2}+\frac{y^2}{1669^2}=1

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3 years ago
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Answer:1: P 2: d 3:a

Step-by-step explanation:

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3 years ago
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