answer.
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
sergeinik [125]
2 years ago
4

400 students were randomly sampled from a large university, and 289 said they did not get enough sleep. Conduct a hypothesis tes

t to check whether this represents a statistically signi cant di erence from 50%, and use an signi cant level of 0.01.

Mathematics
1 answer:
Vladimir79 [104]2 years ago
3 0

The answer & explanation for this question is given in the attachment below.

You might be interested in
Which geometric object is defined as the set of all points in a plane equidistant from a single point and a single line?
Reptile [31]

Answer: parabola

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Solve the equation y′ + 3y = t + e^(−2t).
Leni [432]
Hello,

I am going to remember:

y'+3y=0==>y=C*e^(-3t)

y'=C'*e^(-3t)-3C*e^(-3t)

y'+3y=C'*e^(-3t)-3Ce^(-3t)+3C*e^(-3t)=C'*e^(-3t) = t+e^(-2t)
==>C'=(t+e^(-2t))/e^(-3t)=t*e^(3t)+e^t
==>C=e^t+t*e^(3t) /3-e^(3t)/9

==>y= (e^t+t*e^(3t)/3-e^(3t)/9)*e^(-3t)+D
==>y=e^(-2t)+t/3-1/9+D
==>y=e^(-2t)+t/3+k


4 0
2 years ago
Acasa Insurance Company offers several plans for home insurance.
astraxan [27]

The answer is -500, hope this helped

5 0
2 years ago
A recipe for a dessert for 6 people requires 120g of sugar. How much sugar would I need for a dessert 9 people?
zzz [600]

Answer:

180g of sugar

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Leo drank 8 servings of iced tea and espresso beverages containing a total of 482 mg of caffeine. How many servings of espresso
amid [387]
Leo drank 2 servings of it.
7 0
2 years ago
Read 2 more answers
Other questions:
  • mrs.beluga is driving on a snow covered road with a drag factor of 0.2. she brakes suddenly for a deer. The tires leave a yaw ma
    11·1 answer
  • Jada and Tonya ran 400-meter race. Jada ran the race in 75.2 seconds. Tonga ran the race 69.07 seconds. How much faster did Tony
    10·1 answer
  • Mark and Bonnie both make $11 per hour working for their parents. If they combine their efforts and work for the same amount of
    13·1 answer
  • Given the figure below is a special type of trapezoid and WX || YZ, which angle pairs can be proven supplementary by the given i
    12·2 answers
  • The exterior angle of a regular polygon is one-fifth of its interior angle. How many sides does the polygon have? please answer
    9·1 answer
  • Simplify: (-4a + b – 2c) – (3a + 2b –c)
    7·2 answers
  • A fried chicken franchise finds that the demand equation for its new roast chicken product, "Roasted Rooster," is given by q = 3
    11·2 answers
  • 3. Give the domain of y= √6-X using set builder notation.​
    9·1 answer
  • Cameron has a mask collection. He keeps 267 of the masks on his wall, which is 89%
    5·2 answers
  • Henri bought 3 jars of spaghetti sauce. He used a coupon that reduced the cost of each jar by $0.75. If he paid $6.72 altogether
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!