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
Natali5045456 [20]
3 years ago
13

Could someone help me plz i know it's easy one but i couldn't do it

Mathematics
1 answer:
Luden [163]3 years ago
5 0
1. is 5 seconds
2. would be about 105 because is goes a tiny bit over 100
You might be interested in
Two ways to write a algebraic expression of n-5
deff fn [24]
-5 + n is another way to write the expression. 
5 0
3 years ago
Read 2 more answers
In a survey of 100 people, 60 like farming, 65 like civil service. Draw a venn-diagram and find the number of people who like fa
MAXImum [283]

Answer:

Ur question is wrong..

Step-by-step explanation:

In a survey of 100 people, 60 like farming and 65 like civil service?

<u>60+65=125</u>..?

7 0
1 year ago
A sample of 114 mortgages approved during the current year showed that 36 were issued to a single-earner family or individual. T
kodGreya [7K]

Answer:

a-1) Reject H0 if zcalc > 1.645

a-2) z=\frac{0.316 -0.28}{\sqrt{\frac{0.28(1-0.28)}{114}}}=0.8561  

a-3) ii. False

b) ii. No

c) iii. n π > 10 and n(1 − π ) > 10

Step-by-step explanation:

1) Data given and notation

n=114 represent the random sample taken

X=36 represent the people that were issued to a single-earner family or individual

\hat p=\frac{36}{114}=0.316 estimated proportion of people that were issued to a single-earner family or individual

p_o=0.28 is the value that we want to test

\alpha=0.05 represent the significance level

Confidence=95% or 0.95

z would represent the statistic (variable of interest)

p_v represent the p value (variable of interest)  

(a-1) H0: π ≤ .28 versus H1: π > .28. Choose the right option. Reject H0 if zcalc > 1.645 Reject H0 if zcalc < 1.645 a b

We need to conduct a hypothesis in order to test the claim that the true proportion is less than 0.28.:  

Null hypothesis:p\geq 0.28  

Alternative hypothesis:p < 0.28  

When we conduct a proportion test we need to use the z statistic, and the is given by:  

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

The One-Sample Proportion Test is used to assess whether a population proportion \hat p is significantly different from a hypothesized value p_o.

The rejection zone would be on this case :

Reject H0 if zcalc > 1.645

Since is a right tailed test

(a-2) Calculate the test statistic. (Round intermediate calculations to 2 decimal places. Round your answer to 4 decimal places.) Test statistic

Since we have all the info requires we can replace in formula (1) like this:  

z=\frac{0.316 -0.28}{\sqrt{\frac{0.28(1-0.28)}{114}}}=0.8561  

(a-3) The null hypothesis should be rejected.

False, since our calculated value is less than our critical value we Fails to reject the null hypothesis

(b) Is this a close decision?

False the calculated value is significantly less than the critical value so we FAIL to reject the null hypothesis with enough confidence.

(c) State any assumptions that are required.

In order to satisfy the conditions we need the following two requirements:

iii. n π > 10 and n(1 − π ) > 10

And are satisfied:

114*0.28=31.92>10

114(1-0.28)=82,08>10

7 0
3 years ago
f the original price of a table is p and the sale price of the table is p−0.2p, which other expression represents the sale price
Sphinxa [80]

Answer:

0.2p is the correct

6 0
2 years ago
Does it matter term is first and which term is second in a ratio?
aleksklad [387]
No because it is the same but in a different way

5 0
3 years ago
Other questions:
  • I need his done its math helppp
    10·1 answer
  • Anybody know the right answer?
    13·1 answer
  • A function has a domain of {1, 3, 5, 7} and a range of {2, 4, 6}. Which set of ordered pairs represents this function?
    9·1 answer
  • Find height of this cylinder
    6·1 answer
  • The perimeter of a rectangle is 53 meters. The length is 2.3 meters longer than the width, w. Write and solve an equation to fin
    10·2 answers
  • Ned sold an autographed Ironman poster at a comic convention for $250. He had to pay the convention hall $60 to rent a table. Wh
    14·1 answer
  • What is the slope of the line through (4,-2)and (-1,5)?
    7·1 answer
  • The equation f(x) = 2x²-x+ 4 has roots a and B.
    13·1 answer
  • Can someone plz help me
    13·1 answer
  • Which statements are true of the quadrilateral she constructed? Select three options.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!