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
Solve 4(3b + 2) – 5b = 43 for b. Question 4 options: A) b = 3 B) b = 5 C) b = –3 D) b = –5
Lisa [10]

Answer:

b = 5

Step-by-step explanation:

4 ( 3b + 2 ) - 5b = 43     Given

( 4 • 3b + 4 • 2 ) - 5b = 43      Distributive Property

12b + 8 - 5b = 43

12b - 5b + 8 = 43    Combine like terms

7b + 8 = 43

7b + 8 - 8 = 43 - 8     Subtraction Property of Equality

7b = 35

7b / 7 = 35 / 7      Division Property of Equality

b = 5

7 0
3 years ago
Read 2 more answers
Two ships sail between New York and London. One makes the round trip in 12 days. The other takes 16 days. They both leave London
Mariana [72]
In order to find the answer to this question, you would need to find the Greatest Common Factor of 16 and 12 which would be 4 because 4 is the greatest amount that you can divide both 12 and 16 by. So the soonest both ships will leave together again will be in 4 days.
6 0
3 years ago
Read 2 more answers
Exponential functions grow by equal factors over equal intervals. If a column of Δy was added to prove this relationship, what w
pentagon [3]

Answer:

D)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Work out angle bxc. give a reason for each angle you work out
Rus_ich [418]

Answer:

∠ BXC = 70°

Step-by-step explanation:

∠ XBC and ∠ AXY are corresponding angles and are congruent, then

∠ XBC = 55°

Since XB = XC , then Δ XBC is isosceles and the 2 base angles are congruent.

∠ BXC = 180° - (55 + 55)° ← angle sum of triangle

∠ BXC = 180° - 110° = 70°

7 0
2 years ago
How do you find the missing angles? thank you pls answer will give brainliest
Alexxx [7]

Answer:

1. 70

2. 65

3. 115

4. 65

5. 65

6. 65

7. 65

Step-by-step explanation:

All of them are correct so dont worry

Have a nice day

3 0
2 years ago
Other questions:
  • Factor 8q^2 + 3m + 4qm + 6q=
    14·1 answer
  • Joe is preparing 18 hot dogs for his party. however, joe only has 12 hot dog buns. how many more hot dog buns does joe need? 6 7
    11·2 answers
  • I dont understand what the question is asking ​
    13·1 answer
  • Write the pair of fractions as a pair of fractions with a
    6·1 answer
  • What is 80 divided by 60
    11·1 answer
  • Raj weighs a book and rounds the weights to the nearest tenth. Does this weight round to 1.5 pounds?
    5·2 answers
  • A cylindrical barrel of oil has 55 gallons of oil in it. The height of the barrel is 34.9 inches. It’s diameter is 23.25 inches.
    6·1 answer
  • Find x and y<br><br> Help me please
    12·1 answer
  • X = 1/4 y = 2/3 z = 4 1/5
    10·1 answer
  • What is the y-intercept of the function, represented by the<br> table of values below?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!