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
posledela
3 years ago
11

I need a answer for this please

Mathematics
1 answer:
emmasim [6.3K]3 years ago
6 0

Answer:

where is the questin

Step-by-step explanation:

You might be interested in
It is believed that Lake Tahoe Community College (LTCC) Intermediate Algebra students get less than seven hours of sleep per nig
Kitty [74]

Answer: No , at 0.05 level of significance , we have sufficient evidence to reject the claim that LTCC Intermediate Algebra students get less than seven hours of sleep per night, on average.

Step-by-step explanation:

Let \mu denotes the average hours of sleep per night.

As per given , we have

H_0:\mu=7\\H_a:\mu

, since H_a is left-tailed and population standard deviation is unknown, so the test is a left-tailed t -test.

Also , it is given that ,

Sample size : n= 22

Sample mean : \overline{x}=7.24

Sample  standard deviation : s= 1.93

Test statistic : t=\dfrac{\overline{x}-\mu}{\dfrac{s}{\sqrt{n}}}

i.e.  t=\dfrac{7.24-7}{\dfrac{1.93}{\sqrt{22}}}\approx0.58

For significance level \alpha=0.05 and degree of freedom 21 (df=n-1),

Critical t-value for left-tailed test= t_{\alpha, df}=t_{0.05,21}=- 1.7207

Decision : Since the test statistic value (0.58) > critical value  1.7207, it means we are failed to reject the null hypothesis .

[Note : When |t_{cal}|>|t_{cri}|, then we accept the null hypothesis.]

Conclusion: We have sufficient evidence to reject the claim that LTCC Intermediate Algebra students get less than seven hours of sleep per night, on average.

6 0
3 years ago
What is the midpoint of a segment whose endpoints are (-5,6) and (-7,2)?
zloy xaker [14]
The answer to the question is b

5 0
3 years ago
What is 7000 out of 1/10 is
Ann [662]

Answer:

70,000.

Step-by-step explanation:

7000 is (1/10) of 70,000 - as 7000*10=70,000.

Hope is help ba bye!

-  miah

8 0
3 years ago
Read 2 more answers
What is 2,108 x 35<br> please write in comments below
Gnoma [55]

Answer:

2,108・35 = 73,780

7 0
2 years ago
Can anyone help me out on this question?
svp [43]

Firstly , we will check continuity at x=1

we can use method

Suppose, f(x) is continuous at x=c

then it must satisfy

\lim_{x \to c} f(x)=f(c)

\lim_{x \to 1} f(x)=f(1)

firstly , we can find limit

\lim_{x \to 1-} f(x)=  \lim_{x \to 1-}(x+3)=1+3=4

\lim_{x \to 1+} f(x)=  \lim_{x \to 1-}(3x+1)=3*1+1=4

so, we get

\lim_{x \to 1} f(x)= 4

now, we can find f(1)

f(1)=3*1+1=4

so, we got

\lim_{x \to 1} f(x)=f(1) =4

so, this is continuous at x=1

Hence , option-D...........................Answer

5 0
3 years ago
Other questions:
  • Find the unit rate for 306 miles in 10 hours. A. 00.3 miles/hour B. 30.6 miles/hour C. 306 miles/hour D.3,060 miles/hour
    12·2 answers
  • + 10<br>The perimeter of a square is 60cm.<br>Work out the area of the square,<br>cm2​
    14·2 answers
  • Five angles of a hexagon have measures 100 degrees 110 degrees 120 degrees, 130 degrees and 140 degrees. How much sides does it
    8·2 answers
  • Solve x^2 + y^2 = 36 for y. After solving for y, graph the function. Show solution steps.
    12·1 answer
  • I'm getting so frustrated right now! I'm srry.
    13·2 answers
  • At a store each notebook has a cost of X dollars. which situation can be represented by this inequality​
    13·1 answer
  • Can someone plz help how to solve this by showing the work to
    11·1 answer
  • Which is –3.2 written in the form a/b?<br><br> A. -32/100<br> B. -5/16<br> C. -3/2<br> D. -16/5
    11·1 answer
  • What property is 37 • 2 • (-5 + 5 + 1/2)
    10·1 answer
  • Enter 72% as a fraction in the simplest form
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!