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
mafiozo [28]
3 years ago
10

Which of the following situations calls for a hypothesis test about a population mean?

Mathematics
1 answer:
tigry1 [53]3 years ago
3 0

Answer:

Step-by-step explanation:

Hypothesis test about a population mean is done to evaluate two exclusive statements about a population in order to determine which is best supported by the sample data.

From the situations given, the correct options are

b. A recent study estimated that 20% of all college students in the United States smoke. The head of Health Services at Goodheart University suspects that the proportion of smokers may be lower there. This would require taking a sample and determining the probability of success.

c. A certain prescription allergy medicine is suppose to contain an average of 245 parts per million (ppm) of active ingredient. The manufacturer wants to check whether the mean concentration in a large shipment of pills is 245 ppm or not.

d. A report on the College Board website stated that in 2003 males scored generally higher than females on the SAT exam. An educational researcher wants to check whether this is true in her school district.

You might be interested in
Help with some of my homework, please and thank you
d1i1m1o1n [39]
Your answer is C

Area = length x width

Substitute in the values & expressions you know:

(12m + 18) = length x 6

Divide both sides of the equation by 6:

(12m + 18)/6 = length

2m + 3 = length
5 0
2 years ago
Read 2 more answers
Use the Distributive Property to find the product mentally. Show the steps you used<br> 5 x 47
guajiro [1.7K]
5(40)+5(7)
200+35
235
5 0
3 years ago
The last digit of the heights of 39 statistics students were obtained as part of an experiment conducted for a class. Use the fr
Musya8 [376]

Answer: 32

Step-by-step explanation:

6 0
3 years ago
Line s ‖ segment RP.<br><br><br><br><br><br><br> m∠1 + m∠2 + m∠3 =
3241004551 [841]

Answer:

the answer is 180 degrees.

a straight line is 180 degrees therefor m<1 + m<2+ m<3 = 180.

If I am right please mark me brainliest

Step-by-step explanation:

5 0
3 years ago
What is the area of this polygon?<br>​
Cerrena [4.2K]

Answer:

<h2><em>3</em><em>9</em><em> </em><em>units</em></h2>

<em>Solution,</em>

<em>Total </em><em>area=</em><em>Area </em><em>of </em><em>ABCD+</em><em> </em><em>Area </em><em>of </em><em>triangle </em><em>ADE</em>

<em>(ab \times bc) +  \frac{1}{2}  \times ad \times ef \\  = (5 \times 6) +   \frac{1}{2}  \times 6 \times 3 \\  = 30 + 9 \\  = 39 \:  {units}^{2}</em>

<em>hope </em><em>this </em><em>helps.</em><em>.</em><em>.</em>

<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em><em>.</em>

7 0
3 years ago
Other questions:
  • A car dealership is having a sale in which costomers pay 85% of the retail price for a new vehicle. Keith is buying a vehicle wi
    6·1 answer
  • If f(x) = 3x + 2 and g(x) = 2x – 2, what is (f – g)(x)?
    13·2 answers
  • In a circle of radius 10 cm, a sector has an area of 40 sq. Cm. What is the degree measure of the arc of the sector? 72° 144° 18
    5·2 answers
  • Anyone know the answer to this algebra question? Will give brainiest!
    8·1 answer
  • Find the dimension of a rectangle with a perimeter of 56ft if L is 6ft greater than twice the W
    9·1 answer
  • Owen earns $27,980 per year in take-home pay. What is the most money a
    6·1 answer
  • wyatt opend a savings account 4 years ago. the account earns 4%interest compounded quarterly if the current balance is $1,000.00
    12·1 answer
  • Solve for 41.<br> 1259<br> 61 = [?]<br> 61<br> 37°<br> 889
    7·2 answers
  • Guys help me out whoever tells me the best way to expose a teacher or troll them gets brainiest
    9·2 answers
  • Use pascals triangle to find the coefficient of the third term in the expansion of (a + b)2
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!