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Inessa [10]
3 years ago
12

A statistics teacher fills a large container with 1000 white and 3000 red beads and then mixes the beads thoroughly. She then ha

s her students take repeated SRS of 50 beads from the container. After many SRSs, the values of the sample proportion of red beads are approximated well by a Normal distribution with a mean of 0.75 and standard deviation of 0.06.
(a) What is the population? Describe the population distribution.
(b) Describe the sampling distribution of p^. How is it different from the population distribution?

Mathematics
1 answer:
irina [24]3 years ago
5 0

Answer:

I’m sorry but I’m not much help. I usually don’t answer questions I don’t know about, but I can do one thing.

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Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 55 miles per
SSSSS [86.1K]

Answer:

95+75=170 mph=speed at which the two trains are moving apart

travel time=distance/speed=374/170=2.2

How long will it take for the two trains to be 374 miles apart? 2.2 hrs

Step-by-step explanation:

6 0
3 years ago
An elevator ascends, or goes up, at a rate of 750 feet per minute. Is the height to which the elevator ascends proportional to t
Monica [59]

Answer:

Yes

Step-by-step explanation:

We know this because the proportion can be used to find another answer.

Example:

How many feet did the elevator ascend in 0.25 minutes?

 750           x

---------- = ----------

    1           0.25

750(0.25) = 1x

187.5 = x

***Sorry about the format. Hope this helps!

6 0
2 years ago
Categorize the graph as linear increasing, linear decreasing, exponential
Artist 52 [7]

Answer:

B. Linear increasing

Step-by-step explanation:

decay means decreasing

exponential graph would have a curve

6 0
2 years ago
Read 2 more answers
A pyramid has a surface area of 539 ft.² what is the surface area of a similar pyramid that is smaller by a scale Factor of 1/7
Nataly [62]

Answer:

77 ft²

Step-by-step explanation:

Given that:

Surface Area of larger pyramid = 539 ft²

Scale factor of the smaller pyramid = 1/7

Tbe surface area of the smaller pyramid will be :

Scale factor * surface area

1/7 * 539ft²

= 539 ft² / 7

= 77 ft²

5 0
3 years ago
Suppose that 350 cervical cancer cases were identified and a random sample of women of the same age range who were admitted to t
11111nata11111 [884]

Answer:

a)The ratio of the odds of exposure among cases and controls equal to 5.3

Step-by-step explanation:

Correct option is:

The ratio of the odds of exposure among cases and controls equal to 5.3

Solution:

Odds for cases=0.9/0.1=9

Odds for controls=0.63/0.37=1.703

Odds ratio=9/1.703=5.3

Hence the correct option is  a)The ratio of the odds of exposure among cases and controls equal to 5.3

5 0
3 years ago
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