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
Rudik [331]
3 years ago
8

Um.....................​

Mathematics
2 answers:
Ksju [112]3 years ago
4 0
How was your day today
hammer [34]3 years ago
4 0

Answer:

ummmmmmmmmmm

Step-by-step explanation:

You might be interested in
Answer the questions in the picture ​
Nutka1998 [239]

Answer:

1a 3800, 1b 6300 1c 5100

2a 2630, 2b 2600, 2c 3000

3a 4000, 3b 3000, 3c 8000

7 0
3 years ago
The average household income for a recent year was $30,000. five years earlier the average household income was $24,500. assume
ikadub [295]

Using hypothesis test, we conclude that there is evidence to believe that the average household income has increased.

According to the question,

The average household income for a recent year (x₁⁻) = $30,000

The average household income for a recent year (x₂⁻) = $24,500

sample sizes n₁ = n₂ = 34

standard deviation of both samples were $24,500. Thus, s₁ = s₂ = $5928.

Null hypothesis:  There is no evidence to believe that the average household income has increased.

H₀ : μ₁ ≤ μ₂

Alternative hypothesis:  There is evidence to believe that the average household income has increased.

H₁: μ₁ > μ₂  

To check hypothesis we have the formula

Standard error=  \sqrt{\frac{s_{1} ^{2} }{n_{1} } + \frac{s^{2} _{2} }{n_{2} }  }

= \sqrt{2067128.4706}

= 1437.7512

Thus, standard error is $1437.7512.

Formula for test statistic = [(x₁⁻ -  x₂⁻) - (μ₁ - μ₂)]/standard error

= [(30000 -  24500) - 0]/1437.7512

= 3.8254

The critical value of z at 5% level of significance is 1.6449.

Here, the calculated value is greater than the critical value so we reject H₀.

Hence using hypothesis test, we conclude that there is evidence to believe that the average household income has increased.

Learn more about hypothesis test here

brainly.com/question/15060525

#SPJ2

3 0
2 years ago
98 x 24 = (100 - 2 ) x 24 = ?
Ray Of Light [21]

Answer:

2352

Step-by-step explanation:

(100 - 2) x 24 = 2400 - 48 = 2352

3 0
3 years ago
Please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!
Lena [83]

Answer:

132

Step-by-step explanation:

4 0
3 years ago
Help me pleaseeeeeeeee
solniwko [45]
C. None of the x-values repeat.
4 0
3 years ago
Read 2 more answers
Other questions:
  • The sum of five and three times a number
    14·1 answer
  • I need help figuring out how 3(3) + 18 divided by 3(3) = 27
    5·1 answer
  • Find the amount of cardboard needed to make a box for a single slice of pizza. The box is shoen in the shape of a triangular pri
    7·1 answer
  • If John has drank three drinks per day how many will he have drank in 3 day's?
    8·1 answer
  • How do I solve -7+m=8?
    7·1 answer
  • g and Consider the following. f(x) = 4x2 + 5x − 18 (a) Find the instantaneous rate of change of the function at the value x = −4
    14·1 answer
  • If f(x)= 2x^2 +5radical(x-2)
    12·1 answer
  • I need help I don't know what to do ​
    12·1 answer
  • Mrs.Henry hires a local moving company to help her move into her new apartment. The price includes a 15% tip. Mrs.Henry's total
    15·2 answers
  • 385 Divided by eight
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!