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
stira [4]
2 years ago
7

"Where are you two going at this time of day? Playing hooky, I suppose. I'll just call up the principal and tell him!"

Mathematics
1 answer:
erica [24]2 years ago
6 0

Answer:

whats the question

Step-by-step explanation:

You might be interested in
Researchers conducted a study to find out if there is a difference in the use of ereaders by different age groups. randomly sele
ikadub [295]

No, there is significant difference in the use of e readers by different age groups.

Given sample 1 ( 29 years old) n_{1}=628, p_{1}=7%, sample 2( 30 years old)n_{2}=2309, p_{2}=0.11.

We have to first form hypothesis one null hypothesis and other alternate hypothesis.

H_{0}:π1-π2=0

H_{1}:π1-π2≠0

α=0.05

Difference between proportions p_{1}-p_{2}  =-0.04

p_{d}=0.07-0.11=-0.04

The pooled proportion needed to calculate standard error is:

p=(X_{1} -X_{2} )/(n_{1} +n_{2} )

=(44+254)/(628+2309)

=0.10146

The estimated standard error of difference between means is computed using the formula:

S_{p_{1} -p_{2} }=\sqrt{p(1-p)/m_{1}+p(1-p)/n_{2}  }

=\sqrt{0.101*0.899/628+0.101*0.899/2309}

=\sqrt{0.000143+0.00003}

=\sqrt{0.000173}

=0.01315

Z= Pd-(π1-π2)/S_{p_{1} -p_{2} }

=-0.04-0/0.013

=-3.0769

This test is a two tailed test so the p value for this test is calculated as (using z table)

p value:2 P(Z<-3.0769)

=2*0.002092

=0.004189

P value< significance level of 5%.

Hence there is enough evidence to show the claim that there is a significant difference in the use of e readers by different age groups.

Learn more about hypothesis at brainly.com/question/11555274

#SPJ4

Question is incomplete as it also includes:

Significance level of 5%.

4 0
2 years ago
An army depot that overhauls ground mobile radar systems is interested in improving its processes. One problem involves troubles
jok3333 [9.3K]

Answer:

A. a one-tailed paired t-test.

Step-by-step explanation:

3 0
3 years ago
What is the measure of an exterior angle in a regular 19-gon?
Mashutka [201]
The measure is about 19!
7 0
3 years ago
What is 4664 ➗ by 94
PilotLPTM [1.2K]
49.617 ( alternative form )
6 0
3 years ago
Can y’all help with this :)))))
cricket20 [7]
There’s a pattern to this and I’ll explain in the comments if you want to know or can’t figure it out :)


1.) 27/x^3

2.) a^8/b^12

3.) 7^36/81 OR 13,841,287,201/81

4.) 256m^20/n^4

5.) x^6y^6

6.) 64k^4/k^6

7.) 1,000a^9b^6/a^6b^9

8.) 81x^21/625

9.) 2304/x^16y^12

10.) x^7z^14/y^21

11.) 7,776k^5

12.) x^24y^24/4,096


Hope it’s all helped

7 0
2 years ago
Other questions:
  • What is 110 raised to the 76th power.
    9·1 answer
  • A plant is already 14 centimeters tall, and it will grow one centimeter every month.
    11·1 answer
  • The length of a rectangle is 4 feet more than 4 times the width. If the area is 48 square feet, find the width and length.
    5·1 answer
  • A video game cost $34.90 plus 10% tax. How much will you pay in all for the game?
    5·2 answers
  • Reduce the fraction 34/48 to its lowest term
    9·1 answer
  • Find the points of intersection (if any) of the graphs of the equations. Use a graphing utility to check your results. y = - x +
    12·1 answer
  • Estimate by round
    14·1 answer
  • HELPPP i'll mARK BRAINLIESTT PLZ HELPPPP,, kfibirbig5
    14·1 answer
  • Mrs. Baxter deposits $2,000 in an account that earns 5% sample
    6·1 answer
  • Which expression is equivalent to 5(4x+3)-2x?a 18x+15b 18x+3c 7x+8d 2x+8
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!