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
mihalych1998 [28]
3 years ago
6

The head of a computer science department is interested in estimating the proportion of students entering the department who wil

l choose the new computer engineering option. Suppose there is not information about the proportion of students who might choose the option. What size sample should the department head take if he wants to be 95% confident that the estimate is within 0.10 of the true proportion
Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
8 0

Answer:

96

Step-by-step explanation:

From the given information:

At 95% Confidence interval level,Level of significance \alpha 0.05, the value of Z from the standard normal tables = 1.96

Margin of Error = 0.10

Let assume that the estimated proportion = 0.5

therefore; the sample size n can be determined by using the formula: n =(\dfrac{Z}{E})^2 \times p\times (1-p)

n =(\dfrac{1.96}{0.1})^2 \times 0.5\times (1-0.5)

n =(19.6)^2 \times 0.5\times (0.5)

n = 96.04

n \approx 96

You might be interested in
Need help please!! i will mark brainliest to whoever answers correctly <33
sergij07 [2.7K]

Answer:

x = -33

Step-by-step explanation:

To find the midpoint add the two points and divide by 2

(x+27)/2 = -3

Multiply each side by 2

(x+27)/2 *2= -3*2

x+27 = -6

Subtract 27 from each side

x+27-27 = -6 -27

x = -33

4 0
3 years ago
PLEASE HELP
asambeis [7]
Answer for the first one is just 7/9, 28/36

Second one is 9/14, 3/4

For the third one you multiply 12.50 by 5 which gives you 62.5
4 0
3 years ago
Your cellphone plan is by the minute . Each minute of use costs $0.10 . Create a relation that represents the amount spent ,A, p
d1i1m1o1n [39]

Answer:

Talking 65 minutes, $ 6.50 must be paid.  

Step-by-step explanation:

Since your cell phone plan is by the minute, and each minute of use cost $ 0.10, to create a relation that represents the amount spent, A, per minute, m, of call time, and then use the relation to find the amount spent if you talk 65 minutes, the following calculations must be performed:

0.10 x M = A

0.10 x 65 = A

6.50 = A

7 0
3 years ago
How to make average ?
Viktor [21]

add all numbers and divide by the count of numbers.

6 0
3 years ago
Please help me......<br><br>​
LenKa [72]

Answer:

C. m ≥ 9

Step-by-step explanation:

7m -2 ≥ 61

7m ≥ 61+2

7m ≥ 63

m ≥ 63/7

m ≥ 9

7 0
2 years ago
Other questions:
  • Can someone please answer questions 1 -5
    15·2 answers
  • The legend on a map states that 1 cm is 20 km. If you measure 9 centimeters on the map, how many kilometers would the actual dis
    14·1 answer
  • What is the answer of this
    10·2 answers
  • Given a group of 8 women and 11 men, how many different ways are there of choosing one man and one woman for a committee?
    7·1 answer
  • Here's a graph of a linear function. Write the
    11·1 answer
  • Please simplify:4m to the fifth power times 2m to the eighth power
    9·1 answer
  • 8. Look at triangle MNQ. What is the value<br> of x, to the nearest tenth?
    13·1 answer
  • Each of the options below describes a relationship that you need to graph on a coordinate plane. Which of the options will have
    15·1 answer
  • The length of a rectangle is 14.5 in and the width is 3.2 in. What is its areA
    14·1 answer
  • 2m · 2n would be the same as _____.<br><br> A) 4 mn<br> B) 2 m + n<br> C) 2 mn<br> D) 2 m - n
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!