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
spin [16.1K]
3 years ago
7

A random sample of 100 undergraduate students at a university found that 78 of them had used the university library’s website to

find resources for a class. What is the margin of error for the true proportion of all undergraduates who had used the library’s website to find resources for a class?
Mathematics
1 answer:
Grace [21]3 years ago
6 0
It depends upon the confidence level (99%, 95%, etc) of the sample. In this case, the population size is 100, and the sample size is 78. If it's in a 99% confidence level, margin of error is 7 (So between 71 - 85 undergrads). If it's in a 95% confidence level, the margin of error is 6 (So between 72 - 84 undergrads). 
You might be interested in
Ms. Lai loves soup. This weekend she visited each of her family member’s house to drink their soup. She drank 2 cups of soup at
Digiron [165]

Answer:

112 Ounces

Step-by-step explanation:

2 Cups + 4 Pints + 2 Quarts = 14 Cups

14 Cups = 112 Ounces

7 0
3 years ago
Read 2 more answers
Jobie starts with $325 in her piggy bank. Each month she adds $10.
astraxan [27]
I think it is the fourth one
6 0
3 years ago
Read 2 more answers
Use the table below to answer this question:
ch4aika [34]

Answer:

Step-by-step explanation:

Th average rate of change is the slope of the secant line that goes through those 2 values of x.  Of course, each value of x also has a value of y.  The coordinates for these combinations of x's and y's are:

(-1, 5) and (4, 0).  We can use the slope formula to find the average rate of change of this function without having to know what the function's equation is:

m=\frac{0-5}{4-(-1)}=\frac{-5}{5}=-1

So the average rate of change, aka slope, between those 2 points is -1

7 0
3 years ago
] What percentage of the last 30 U.S. Presidents were inaugurated at the age of 60 or later? (Round to 1 decimal place.)
svetlana [45]

Answer:

20.0%

Step-by-step explanation:

The last 30 presidents of America starts from the 16th president, Abraham Lincoln and ends with the current and 45th president, Donald Trump.

The presidents that are 60 and above years during this period include

Donald Trump, Goerge H. W. Bush, Roland Regan, Gerald Ford, Dwight D. Eisenhower and Harry S. Truman.

Making 6 of them out of 30

The percentage is given by

Number of presidents aged 60 and above×100/Total number of presidents

6×30/100=20%

7 0
3 years ago
Two points located on are J(1,-4) and K(-2,8). What is the slope of ?
trapecia [35]

Answer:

-4

Step-by-step explanation:

to do this you use y2-y1/x2-x1

so this would be -4-8/1- - 2

-12/3 = -4

3 0
2 years ago
Other questions:
  • Is 5.78778777 a rational or irrational number?..
    7·1 answer
  • You invest $2,000 in an account that is compounded annually at an interest rate of 5%. You never withdraw money from the account
    10·1 answer
  • the athletics department paid $1,417.50 for all the dinners at the spring sports banquet. If each dinner cost $13.50,how many we
    7·2 answers
  • Kyra has a manufacturer's coupon for $5 off a box of diapers and a store coupon for 20% off any purchase. The store will let you
    11·1 answer
  • Which expression is equivalent to square root of -80
    10·2 answers
  • 493 + 327 help me please
    13·1 answer
  • Which of the following is the most appropriate unit to describe the rate at which data is transferred using the internet?
    10·2 answers
  • if a hummingbird were to get all of its food from a feeder, then a 16 ounce nectar feeder could feed about 80 hummingbirds a day
    8·2 answers
  • 3 less than or equal to y -2
    14·2 answers
  • A) 4+10+8=<br> B) 5-9+1=<br> C) -8-2+3=<br> D) -15+8-7=<br> E) 24+6-12=<br> F) 18-3-21=
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!