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
Lostsunrise [7]
3 years ago
5

g Suppose you wish to perform a hypothesis test for a population mean. Suppose that the population standard deviation is known,

the population distribution is Normal, and the sample is small. Would you perform a z-test or t-test?
Mathematics
1 answer:
NikAS [45]3 years ago
5 0

Answer:

z-test.

Step-by-step explanation:

We want to perform an hypothesis test for a population mean.

In the case that the <u>standard deviation of the population is known</u> and the population distribution is normal, even if the sample is small, <u>we will use a z-test</u>.

The usual case is to not know the standard deviation of the population, in which case a t-test is adequate instead of a z-test, taking into account the degrees of freedom of the sample.

You might be interested in
Explain how knowing 1+7 help you find th sun
AfilCa [17]
Draw the line -10 to 20 divide it into units
go to the left is minus and right plus. 
plot the point 1 in the line. 
going to the 7 unit right because it is adding 7
now you got 8
that is the answer.
4 0
3 years ago
A yard of fabric costs $12.99. How much will 5 feet cost?
Aloiza [94]

Answer:

$21.65

brainliest?

Step-by-step explanation:

1 yard = 3 feet

so 5 feet would =  to 1 2/3 yards = 5/3 yards

12.99*5/3

12 99/100=1299/100

1299/100 x 5/3=433/20

433/20 = 21  13/20

13/20 x  5/5= 65/100=0.65

0.65+21

$21.65

hope this helped!

have a good day!

8 0
3 years ago
Israel planted 4 tomato seeds in his garden. Then he planted some flower seeds. Which expression represents the number of seeds
VMariaS [17]

Answer:

Option B - 4 + s

Step-by-step explanation:

Tomato seeds = 4 ( as they told 4 )

Flower seeds = s ( as they told "SOME" )

Total number of seeds = 4 + s seeds

Hope this helps you.

6 0
3 years ago
In which number does the 5 represent a value 10 times the value represented by the 5 in 35,187
blagie [28]
It would be 50,000 since the 5 in the other number is in the thousands place so just multiply that by 10 in place value.
3 0
2 years ago
The owner of an office building is expanding the length and width of a parking lot by the same amount. The lot currently measure
Gnoma [55]

The best and most correct answer among the choices provided by your question is the second choice or letter B "20".

The current area is 120(80)=9600 and he want to expand it by 4400 so that the new area will be 9600+4400=14000 

14000=(120+x)(80+x) 

14000=9600+200x+x^2 

x^2+200x-4400=0 

x^2-20x+220x-4400=0 

x(x-20)+220(x-20)=0 

(x+220)(x-20)=0, since x is an increase it must be greater than zero so 

x=20ft 

(120+20)(80+20)=14000ft^2


I hope my answer has come to your help. Thank you for posting your question here in Brainly.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Half your baseball card collection got wet and was ruined. You bought 13 cards to replace some that were lost. How many did you
    12·1 answer
  • benny bought 9 new baseball trading cards to add to his collection.the next day his dog ate half of his collection. there are no
    15·2 answers
  • The stopping distance d of an automobile is directly proportional to the square of its speed s.
    15·1 answer
  • A store had 100 t-shirts. each month, 30% of the t-shirts were sold and 25 new t-shirts arrived in shipments. which recursive fu
    8·2 answers
  • The bakery bought four bags of flour containing 3.5 kg each 475 g of flour are needed to make a batch of muffins and 0.65 kg is
    10·2 answers
  • What is 7,258,630 in word form?
    8·2 answers
  • If u don’t get it right I <br> Will report you
    15·2 answers
  • a voulnteer evenly sorts 2750 ribbions into a 250 welcome bags. How many ribbions are in each welcome bag?
    13·2 answers
  • Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice.
    13·2 answers
  • 3. Consider two 'postulates' given below: 0 Given any two distinct points A and B, there exists a third point C which is in betw
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!