1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kodGreya [7K]
3 years ago
11

1. An AP Statistics class starts a project to estimate the average number of hours a student at their high school sleeps per nig

ht. Their high school has 1200 students, and they take a sample of the first 120 students that arrive at school on a particular day. They ask each of the 120 students how many hours of sleep they got the night before and then calculate an average. Which of the following statements is an accurate description of the elements of this survey?
a. Population: the 120 students surveyed. Parameter of interest: the average number of hours a student at this high school sleeps per night.
b. Sample: the 1200 students of the school. Population: all high school students in the United States. Statistic: the average number of hours a student at this high school sleeps per night
c. Sample: the 120 students surveyed. Population: the 1200 students at the high school. Parameter of interest: the average number of hours a student at this high school sleeps per night.
d. Sample: the 120 students surveyed. Population: the 1200 students at the high school. Statistic: The average number of hours a student at this high school sleeps per night.
e. This is not a survey because a convenience sample was used.
Mathematics
1 answer:
Vladimir [108]3 years ago
5 0

Answer:

Option E

Step-by-step explanation:

This survey will not be reliable as it is chosen for convenience; the first 120 students to arrive in school on a particular morning and this collection of individuals may not be a representative of the population. The study may become biased because it does not take into account the latecomers among the students which might have been changed the study from systematically favoring certain outcomes.

You might be interested in
Given y = x + 1 Calculate y if x = 3. y is a natural number​
kompoz [17]

Answer:

y = 4

Step-by-step explanation:

If 3 is x than you can substitute x for 3. y = 3 + 1. Then when you add  y = 4

7 0
3 years ago
Read 2 more answers
Examine the equation.<br><br> –2(–x + 9) = 2(x – 9)<br> 2x – 18 = 2x – 18<br> This equation has
kolezko [41]

Answer:

infinite solutions

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
the length of a rectangle is 3cm greater then it's width. The perimeter is 24cm. Find the dimensions of the rectangle.
vodomira [7]
Length is 15 while width is 9
5 0
3 years ago
Read 2 more answers
a soccer field is a rectangle 90 meters wide and 120 neters long. The coach asks players to run from one coner to the other corn
iren [92.7K]
(120^2)+(90^2)=22500---> sqrt(22500)=150meters
8 0
3 years ago
Sam borrows money from his brother to buy a new video game. He agrees to pay his brother back the full amount of the loan, plus
Olegator [25]
Sam borrowed 50 dollars
7 0
3 years ago
Other questions:
  • HELP PLEASE PLZ !!!!!!!!
    10·2 answers
  • Which of the following shapes has an apex? Select all that apply.
    5·2 answers
  • The coordinates of LMN are L (4,5), M (5,-2), and N (0,0). If the triangle is rotated 270° about point N, what are the coordinat
    6·1 answer
  • What information do you need to write a sine or cosine equation?
    13·1 answer
  • After arianna completed some work, she figured she still had 78 21/100 pictures to paint. if she completed another 34 23/25 pict
    11·1 answer
  • Guys help don't have enough time left. This can really effect everything if this is correct so try your best.
    8·2 answers
  • Carol wants to build a fence around her
    9·1 answer
  • This question is confusing to me please help..
    13·1 answer
  • LA=<br> Round your answer to the nearest hundredth.<br> с<br> B<br> 6<br> 8<br> ?<br> А
    14·1 answer
  • Use the fraction model to multiply: three multiplied by three fifths. Leave your answer as an improper fraction.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!