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
DedPeter [7]
3 years ago
6

Researchers randomly studied the relationship, if any, between male and female grade point averages in a population of seniors w

ho were not intending to go to college after high school. They wanted to construct a 95% confidence interval for this study on 50 men and 50 women. The mean average gpa for the men was 2.9 with a standard deviation of 0.5 and the mean average gpa for the women was 3.1 with a standard deviation of 0.4. Construct the confidence interval for the difference of two sample means.
Mathematics
1 answer:
prohojiy [21]3 years ago
4 0

Answer:

CHAPTER 1: INTRODUCTION

1.1 The Basics

Definition: statistics

Statistics is the science of collecting, organizing, interpreting, and learning from data.

COURSE GOAL:

Learn how to use statistical methods to translate data into knowledge so that we can investigate

questions in an objective manner. Here are some examples of questions we’ll have the tools to

answer before the end of the semester:

1. How can we estimate the percentage of American citizens who would vote for Hillary Clinton

if the presidential election were held today? How certain are we about our estimate?

2. What is the relationship between the amount of time spent studying and the score received

on an exam?

3. Is there an association between smoking and divorce? If so, does that mean smoking causes

divorce?

THREE ASPECTS OF STATISTICS

1. Design: Planning how to obtain data to answer the question of interest.

2. Description: Summarizing the data that are obtained.

3. Inference: Using sample data to learn about the population: make decisions and

predictions based on the data for answeri

Step-by-step explanation:

You might be interested in
Which graph represents the solution set of the compound inequality -43x-1 and 2x+43 18?
r-ruslan [8.4K]

Answer:

Step-by-step explanation:

YOU CAN DO THIS :)

7 0
2 years ago
Evan is earning some extra cash by mowing lawns. It takes Evan 6 ¾ hours to mow 3 lawns. The first lawn takes him 2 ⅞ hours and
denpristay [2]
Hope this helps the answer is 2 1/8 the picture explains how i did it :)

4 0
3 years ago
D'Naisa mixed her favorite shade of orange paint. She had 111 gallon of orange paint and added 222 quarts of yellow paint and 33
natka813 [3]

Answer:

7.5 Quarts

Step-by-step explanation:

D'Naisa mixed the following:

  • 1 gallon of orange paint
  • 2 quarts of yellow paint
  • 3 pints of red paint.

We are to determine in total, the number of quarts of paint that she mixed. this is done by converting each of the volume to quart.

<u>1 gallon of orange paint</u>

  • 1 gallon = 4 Quarts
  • Orange Paint=4 Quarts

<u>3 pints of red paint.</u>

  • 1 pint =0.5 quart
  • 3 Pints =3 X 0.5 Quart
  • =1.5 Quart of red paint

Therefore,

Total Volume of Paint Mixed in quart= Volume of Orange+Yellow+Red

=4+2+1.5

=7.5 Quarts

3 0
3 years ago
Read 2 more answers
Evaluate<br> 11<br> % of <br> 953.23<br> m<br> Give your answer rounded to 2 DP.
Akimi4 [234]

\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{11\% of 953.23}}{\left( \cfrac{11}{100} \right)953.23}\implies 104.86

7 0
2 years ago
Guy took out a 10-year loan for $63,000 at an APR of 10.9%, compounded
astra-53 [7]

Answer: Wilber would save more, because he borrowed $15,000 more in principal.

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Choose your favourite cars and describe about it. Speak for about 3 minutes.
    8·1 answer
  • Solve x2 + 2x + 9 = 0. (2 points) x equals negative 2 plus or minus 4 I square root of 2 x equals negative 2 plus or minus 2 I s
    11·1 answer
  • Please show step by step video
    14·2 answers
  • What is the f(5) for the function f(x)=3x+6
    13·2 answers
  • I WILL MARK BRAINLIEST
    14·2 answers
  • K+x=y<br> answer that please i need help!!!!
    14·1 answer
  • What is the slope represented in the table ?
    15·1 answer
  • A company that manufacturers deep freezers has developed a new formula of refrigerant, the substance used to cause cooling in re
    12·2 answers
  • If you needed to reflect (-4,-5) over the y-axis what would the<br> coordinates be?
    15·2 answers
  • 21÷(4+3)-10 = <br><br> Please help me solve ^^
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!