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
Afina-wow [57]
3 years ago
5

Plz help im cheeks at math

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
6 0

We have an exponential with a fractional base and a positive exponent, and a positive sign at front. Each time we multiply a fraction between zero and one by itself it gets smaller.  So as x increases we'll go to zero.   As x decreases it goes to positive infinity, as negative powers are the reciprocals of positive power.

The left end approaches positive infinity and the right end approaches zero.

You might be interested in
How do i find the volume of a cone with a radius of 9ft and a height of 24ft​
ycow [4]

Answer: V≈2035.75ft³

That is a small 3 after ft

HOPE THIS HELPS

8 0
2 years ago
in a program designed to help patients stop smoking 232 patients were given sustained care and 84.9% of them were no longer smok
grandymaker [24]

Answer:

z=\frac{0.849 -0.8}{\sqrt{\frac{0.8(1-0.8)}{232}}}=1.869  

p_v =2*P(Z>1.869)=0.0616  

If we compare the p value obtained and the significance level given \alpha=0.05 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion of adults were no longer smoking after one month is not significantly different from 0.8 or 80% .  

Step-by-step explanation:

1) Data given and notation

n=232 represent the random sample taken

X represent the adults were no longer smoking after one month

\hat p=0.849 estimated proportion of adults were no longer smoking after one month

p_o=0.80 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)  

2) Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that the true proportion is 0.8.:  

Null hypothesis:p=0.8  

Alternative hypothesis:p \neq 0.8  

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.

3) Calculate the statistic  

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

z=\frac{0.849 -0.8}{\sqrt{\frac{0.8(1-0.8)}{232}}}=1.869  

4) Statistical decision  

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.  

The significance level provided \alpha=0.05. The next step would be calculate the p value for this test.  

Since is a bilateral test the p value would be:  

p_v =2*P(Z>1.869)=0.0616  

If we compare the p value obtained and the significance level given \alpha=0.05 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion of adults were no longer smoking after one month is not significantly different from 0.8 or 80% .  

6 0
3 years ago
Es There are 30 students on the debate team and 20 students on the math team. Ten students are on both the math team and
irakobra [83]
There will be 40 students!!!
5 0
3 years ago
Hello My name es Liliana y arigato bye​
alexandr402 [8]

Answer:

?????.... hii erica herrrr

6 0
3 years ago
Read 2 more answers
A student bought a juice drink for $2 and a sandwich the total was &6.50 how much was the sandwich
mel-nik [20]

Answer:

Step-by-step explanation:

you have to minus 6.50 by 2 and you get the answer the anwser is 4.5

6 0
3 years ago
Other questions:
  • Brenda conducts a survey of 100 students to see how their study habits and their grades are related. She wants to see whether st
    8·1 answer
  • Help i must get this correct i will make u brainllest<br>plzzz anyone
    5·2 answers
  • Jennifer has 3 1/2 cups of jelly beans to share with 7 friends how many cups does each person get
    8·2 answers
  • 3/7s=-8 can you please help me find the answer?
    8·1 answer
  • HELP Increase 1 by 10%
    13·2 answers
  • Find the volume of the pyramid 6cm 11cm 4cm
    11·1 answer
  • Kamila buys a notebook for $1.59 and pens for $0.29 each. She spends $5.07.
    7·1 answer
  • Design a logo for yourself or a fictional company using a variety of transformations. Describe each of the transformations you u
    13·1 answer
  • Factoring with Diagrams
    9·1 answer
  • PLS HELP FOR BRAINLIEST
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!