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
Zolol [24]
3 years ago
15

The principal of a large high school wants to know if students spend more than 1 hour doing homework per night, on average. To i

nvestigate, the principal surveys a random sample of 100 students and will perform a significance test using a significance level of 0.05.
What hypothesis should the principal test?
Mathematics
1 answer:
MrRissso [65]3 years ago
7 0

Answer:

If we define the random variable X ="time spend by the students doign homework"

And we want to tes t is students spend more than 1 hour doing homework per night, on average (alternative hypothesis), so then the system of hypothesis for this case are:

Null hypothesis: \mu \leq 1

Alternative hypothesis: \mu >1

And they wnat to use a sample size of n = 100 and a significance level of 0.05

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

Solution to the problem

If we define the random variable X ="time spend by the students doign homework"

And we want to tes t is students spend more than 1 hour doing homework per night, on average (alternative hypothesis), so then the system of hypothesis for this case are:

Null hypothesis: \mu \leq 1

Alternative hypothesis: \mu >1

And they wnat to use a sample size of n = 100 and a significance level of 0.05

You might be interested in
Adding and Subtracting Positive and Negative Fractions and Decimals. Estimate each problem to check if the students answer is re
AnnyKZ [126]
The answer is 3 1/2 or in decimal form it is 3.5
8 0
3 years ago
How many times greater than √2 is√32?<br><br> Can anybody help out here?
Anarel [89]

Answer:

4

Step-by-step explanation:

Root32= 4×root2

Root32 is 4 times greater than root2

Pls mark as brainliest

5 0
2 years ago
Read 2 more answers
Rudd Clothiers is a small company that manufactures tall-men’s suits. The company has used a standard cost accounting system. In
pentagon [3]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

7 0
3 years ago
Read 2 more answers
How do i solve this? <br><br> 7 &lt; 3 - 2x<br><br><br> It's linear inequalities
Natasha2012 [34]

Hello from MrBillDoesMath!

Answer:

x < -2

Discussion:

7 < 3 - 2x                       => Add 2x to both sides

7 + 2x < 3 - (2x - 2x)     =>  As 2x -2x = 0

7 + 2x < 3                      =>  Subtract  7 from both sides

(7-7) +  2x < 3 - 7           => As 7-7 = 0 and 3-7 = -4

2x < -4                           => Divide both sides by 2

x < -4./2 = -2

Thank you,

MrB

7 0
3 years ago
What is 10.5% of 238?
pshichka [43]
I believe that it is 24.99 but I'm not too sure. Anyways I hope I helped!
7 0
3 years ago
Read 2 more answers
Other questions:
  • A closed rectangular box has volume 48cm3. What are the lengths of the edges giving the minimum surface area?
    11·1 answer
  • Simplify the following surds:<br>a. √50=<br>b. √5+√8-√20+√2=<br>c. -6√20+2√45+7√5=​
    8·1 answer
  • Pls help simple stuff
    14·1 answer
  • A research report describing the results from a repeated-measures study states: The data show no significant difference between
    10·1 answer
  • Dtermine whether the following value is a continuous random​ variable, discrete random​ variable, or not a random variable.
    6·1 answer
  • If a line with a slope of -2 crosses the y-axis at (0,3), what is the equation of the line? I have no Idea how to work this prob
    14·1 answer
  • What is the surface area of a prism whose base is each of area 16 m² and who's literal surface area of 64 m²
    9·1 answer
  • Please help due right now
    11·1 answer
  • What is the difference? startfraction x over x squared minus 2 x minus 15 endfraction minus startfraction 4 over x squared 2 x m
    6·1 answer
  • Group the terms with variables on one side of the equal sign and simplify.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!