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satela [25.4K]
3 years ago
10

A simple random sample of eight high school students' ACT scores gave the following data: What is a point estimate for μ, the me

an test score for the population? a. A point estimate cannot be computed since the data for the whole population are not available. b. 235 c. 29.38 d. 4.84
Mathematics
1 answer:
Grace [21]3 years ago
4 0

Answer: c, is the correct option.

Step-by-step explanation:

The sample mean is the best point estimate for the population mean in a particular study.

Given data of scores: $\begin{array}{llllllll}27 & 30 & 20 & 29 & 28 & 36 & 34 & 31\end{array}$

Sample mean = \frac{\text{Sum of values}}{\text{Number of values}}

=\frac{27+30+20+29+28+36+34+31}{8}\approx29.38

Hence, a point estimate for μ, the mean test score for the population is 29.38

Thus , c. is the correct option.

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Answer:

$348.82

Step-by-step explanation:

240 +86=326

326× 7%= 22.82

326+22.82= $348.82

7 0
3 years ago
WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!! You have agreed to borrow $40 and after 2 years you pay back $52. What is the in
Alecsey [184]

Answer:

6$ per year

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4 years ago
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A bullet with a mass of 0.005 kg is shot at a speed of 40
marin [14]

Answer:

combined velocity of the system = 0.033 m/s.

Step-by-step explanation:

taking the bullet and block as single system since there is no external force involved momentum is conserved .

initial momentum of the bullet = mv

where m is the mass of bullet and v is velocity of bullet.

and initial momentum of block = 0 since its velocity is 0.

therefore initial momentum of the system = mv

                                                                      = 0.005×40

                                                                      = 0.2

when the bullet stick of together with the block let the combined velocity of the system be V

therefore applying conservation of momentum

mv = (M+m)V

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7 0
3 years ago
What is the equation, in slope-intercept form, of the line that passes through (0,3) and has a slope of -6?
olga55 [171]
Y - y₁ = m(x - x₁)
 y - 3 = -6(x - 0)
 y - 3 = -6(x) + 6(0)
 y - 3 = -6x + 0
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7 0
3 years ago
MATHEMATICAL READINESS
adoni [48]

Answer:

80%

Step-by-step explanation:

So,  if x movies are thought to be very good out of a total of y movies,

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So if a total of 100 movies watched, 80 of them are thought to be very good.

Thus the required answer is 80%.

5 0
3 years ago
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