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
Fittoniya [83]
3 years ago
7

A news service conducted a survey of 1077 adults ages 18 years or older in a certain​ country, August 31−September ​2, 2015. The

respondents were​ asked, Of every tax dollar that goes to the federal​ government, how many cents of each dollar would you say are​ wasted? Of the 1077 individuals​ surveyed, 37​% indicated that 51 cents or more is wasted. The news service reported that 37​% of all adults in the country 18 years or older believe the federal government wastes at least 51 cents of each dollar​ spent, with a margin of error of 6​% and a 95​% level of confidence. What is the research objective?
Mathematics
2 answers:
koban [17]3 years ago
7 0

Answer:

To determine the percent of adults in the country who believe that the federal government wastes 51 cents or more of every dollar.

Step-by-step explanation:

As per the given scenario, the research objective is :

To determine the percent of adults in the country who believe that the federal government wastes 51 cents or more of every dollar from the population that contains, adults of the country who are aged 18 years or older.

liubo4ka [24]3 years ago
3 0

Answer:

The answer is 51% on USAtestprep for all you babes who are too lazy to watch the video, yes you.

You might be interested in
What is the value of y in the equation 4(5y –8 –2) = 185 –15?
Rina8888 [55]
In an equation the Left hand side must equal the right hand side 4(5y-8-2)=185-15 20y-32-8=170 20y=170+32+8 20y=210 Therefore y=10,5 When you substitute the 10,5 and solve it on the left and side it's equal to 170 which is the answer on the right hand side
8 0
3 years ago
Suppose you are interested in the effect of skipping lectures (in days missed) on college grades. You also have ACT scores and h
DIA [1.3K]

Answer:

a) For this case the intercept of 2.52 represent a common effect of measure for any student without taking in count the other variables analyzed, and we know that if HSGPA=0, ACT= 0 and skip =0 we got colGPA=2.52

b) This value represent the effect into the ACT scores in the GPA, we know that:

\hat \beta_{ACT} = 0.015

So then for every unit increase in the ACT score we expect and increase of 0.015 in the GPA or the predicted variable

c) If we are interested in analyze if we have a significant relationship between the dependent and the independent variable we can use the following system of hypothesis:

Null Hypothesis: \beta_i = 0

Alternative hypothesis: \beta_i \neq 0

Or in other wouds we want to check if an specific slope is significant.

The significance level assumed for this case is \alpha=0.05

Th degrees of freedom for a linear regression is given by df=n-p-1 = 45-3-1 = 41, where p =3 the number of variables used to estimate the dependent variable.

In order to test the hypothesis the statistic is given by:

t=\frac{\hat \beta_i}{SE_{\beta_i}}

And replacing we got:

t = \frac{-0.5}{0.0001}=-5000

And for this case we see that if we find the p value for this case we will get a value very near to 0, so then we can conclude that this coefficient would be significant for the regression model .

Step-by-step explanation:

For this case we have the following multiple regression model calculated:

colGPA =2.52+0.38*HSGPA+0.015*ACT-0.5*skip

Part a

(a) Interpret the intercept in this model.

For this case the intercept of 2.52 represent a common effect of measure for any student without taking in count the other variables analyzed, and we know that if HSGPA=0, ACT= 0 and skip =0 we got colGPA=2.52

(b) Interpret \hat \beta_{ACT} from this model.

This value represent the effect into the ACT scores in the GPA, we know that:

\hat \beta_{ACT} = 0.015

So then for every unit increase in the ACT score we expect and increase of 0.015 in the GPA or the predicted variable

(c) What is the predicted college GPA for someone who scored a 25 on the ACT, had a 3.2 high school GPA and missed 4 lectures. Show your work.

For this case we can use the regression model and we got:

colGPA =2.52 +0.38*3.2 +0.015*25 - 0.5*4 = 26.751

(d) Is the estimate of skipping class statistically significant? How do you know? Is the estimate of skipping class economically significant? How do you know? (Hint: Suppose there are 45 lectures in a typical semester long class).

If we are interested in analyze if we have a significant relationship between the dependent and the independent variable we can use the following system of hypothesis:

Null Hypothesis: \beta_i = 0

Alternative hypothesis: \beta_i \neq 0

Or in other wouds we want to check if an specific slope is significant.

The significance level assumed for this case is \alpha=0.05

Th degrees of freedom for a linear regression is given by df=n-p-1 = 45-3-1 = 41, where p =3 the number of variables used to estimate the dependent variable.

In order to test the hypothesis the statistic is given by:

t=\frac{\hat \beta_i}{SE_{\beta_i}}

And replacing we got:

t = \frac{-0.5}{0.0001}=-5000

And for this case we see that if we find the p value for this case we will get a value very near to 0, so then we can conclude that this coefficient would be significant for the regression model .

7 0
3 years ago
What is the center of the circle
Vesna [10]
Put the equation given in the form (x + f) + (y + h) =  r ^{2}
The center will be (-f, -g)
8 0
3 years ago
David and Tonya each cut a cylinder in half. The cross-section that results from David's cut is a rectangle. The cross-section t
bija089 [108]

Answer:

Tonya cut the cylinder vertically and David cut it diagonally.

4 0
3 years ago
To the nearest tenth of a mile how many miles from the runway is the airplane at the start of this approach the figure is not dr
nikklg [1K]
Hey guys im gonna be really nice, ima give you the answers for connexus <span>Geometry Semester B: 1) D 2) B 3) A 4) D 5) B 6) C 7) D 8) A 9) A 10) NO 11) OBTUSE 12) C 13) A 14) D 15) B 16) A 17) LAST GRAPH 18) D 19) A 20) B 21) B 22) B 23) C 24) A 25) B 26) A 27) A 28) B 29) B 30) B 31) A 32) A 33) B 34) B 35) B 36) D 37) A 38) A 39) A 40) B 41) D 42) A 43) B 44) A 45) B 46) D 47) C 48) A 49) D 50) D 
These r 100% correct i promise if ur in connexus you will get all correct! hope this helps you guys out :3</span>
4 0
3 years ago
Other questions:
  • A ball is launched from a sling shot. Its height, h(x), can be represented by a quadratic function in terms of time, x, in secon
    12·1 answer
  • Each month Elizabeth budgets $760 for fixed expenses, $620 for living expenses, and $80 for annual expenses. Her annual net inco
    8·2 answers
  • 4688-3) -30X-5 CX-5)
    12·2 answers
  • What is the value of 72?<br> a. 7<br> b. 14<br> c. 49<br> d. 72
    8·1 answer
  • Many fundraisers ask for donations using e-mail and text messages. The paper "Now or Never! The Effect of Deadlines on Charitabl
    9·1 answer
  • I WILL AWARD BRAINLIEST!! PLEASE HELP!!
    8·1 answer
  • You have to say the time and the clocks are inverted btw
    7·2 answers
  • Find ADC i need the answer asap
    7·1 answer
  • Please help me <br> Jello <br> Please <br> I will give Brainly
    5·2 answers
  • What is the value of the fourth term in a geometric sequence for which a1=10 and r =0.5
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!