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timofeeve [1]
2 years ago
12

Research suggests that students could benefit from later school starting times. A school administrative team is considering a pr

oposal to move the starting time of the local schools one hour later than the current start time. To measure interest in the proposal, members of the team randomly select subjects attending a large high school soccer tournament played on the high school grounds on a Saturday morning. The team finds that 58% of those surveyed support a later high school start time. Which type of bias is most likely to be present in the survey results?
This is undercoverage bias because adults with older children are more likely to be included in the sample.
This is question wording bias because the phrasing of the later start times question may be confusing to some subjects.
This is nonresponse bias because some of those selected may choose to not provide their opinion on later start times.
This is voluntary response bias because vocal supporters of later start times will be more likely to offer their opinion.
Mathematics
1 answer:
almond37 [142]2 years ago
6 0

The type of bias which is most likely to be present in the survey results is undercoverage bias because adults with older children are more likely to be included in the sample.

<h3>Research</h3>

This is a diligent inquiry or examination to seek or revise facts, principles, theories,or applications. It is used to make an extensive investigation or search for truth in an experiment.

Bias

In statistics, bias is the difference between the expectation of the sample estimator and the true population value, which reduces the representativeness of the estimator by systematically distorting it

Learn more about research:

brainly.com/question/968894

#SPJ1

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the sum of two numbers is 48 the number larger number is 22 more than the smaller number what are the numbers
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The numbers are 13 and 35
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3 years ago
A cyclist rides his bike at a rate of 5 kilometers per hour.what is this rate in
il63 [147K]

Answer:

rate is 8 miles per hour and he travels 40 miles per 5 hours

Step-by-step explanation:

The story problem told that i should assume that 1 mile is 1.6 km

so 5km/hr is equal to 8m/h

i got it by multiplying 5 by 1.6 so i can change from the unit km to mile

so about the miles per 5 hours just multiply the 8 mph by 5 so it is 40

40miles per 5hrs

hope i made it clear

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3 years ago
What is the upper and lower quartile of this set of data? 15, 19, 20, 25, 31, 38, 41
aev [14]
Answer:

Upper quartile: 38
Lower quartile: 19
3 0
3 years ago
Read 2 more answers
A carnival ride is in the shape of a wheel with a radius of 25 feet. The wheel has 20 cars attached to the center of the wheel.
Ad libitum [116K]
<h3>Answers:</h3>
  • Central angle = 18 degrees
  • Arc length = 7.85 feet approximately
  • Area of sector = 98.17 square feet approximately

All of these answers apply to just between two adjacent or neighboring cars. For the last two answers, I used the calculator's stored value of pi instead of something like pi = 3.14

==================================================

Explanation:

A full circle is 360 degrees. Divide this into 20 equal pieces to get 360/20 = 18. Each little pie slice is 18 degrees. This is the central angle between any two adjacent or neighboring cars.

--------------------------

The circumference of the ferris wheel is 2*pi*r = 2*pi*25 = 50pi  feet exactly. This is the total distance around the circle. We only want a small portion of that. Namely, we want the curved distance from one car to its neighbor. Go for the shortest distance possible.

The formula we'll use is

L = (x/360)*2*pi*r

note how 2*pi*r is the circumference of the circle, so we're taking a fractional portion (x/360) of this full circle perimeter to get the arc length L. The value of x is the central angle.

So,

L = (x/360)*2*pi*r

L = (18/360)*2*pi*25

L = (1/20)*50pi

L = (50/20)pi

L = 2.5pi

L = 7.85398163397449 feet

L = 7.85 feet approximately

I used my calculators stored version of pi, as opposed to something like pi = 3.14

--------------------------

The last part of this problem is finding the area of the sector between two neighboring cars. The full circle has area of pi*r^2 = pi*25^2 = 625pi square feet exactly.

We'll take a fraction of this, specifically 1/20 th of the area, to get the pie slice area we want

area of sector = (1/20)*(area of circle)

area of sector = (1/20)*625pi

area of sector = 31.25pi

area of sector = 98.174770424681 approximately

area of sector = 98.17 square feet approximately

7 0
4 years ago
Read 2 more answers
A laundry basket contains 3 red socks and 33 pink socks.
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Answer:

1/3

Step-by-step explanation:

If 2 out of the 6 socks are red then the odds of you picking one randomly are 2/6 which equals 1/3

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2 years ago
Read 2 more answers
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