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
mamaluj [8]
3 years ago
15

It has been observed that some persons who suffer acute heartburn, again suffer acute heartburn within one year of the first epi

sode. This is due, in part, to damage from the first episode. The performance of a new drug designed to prevent a second episode is to be tested for its effectiveness in preventing a second episode. In order to do this two groups of people suffering a first episode are selected. There are 55 people in the first group and this group will be administered the new drug. There are 45 people in the second group and this group will be administered a placebo. After one year, 11% of the first group has a second episode and 9% of the second group has a second episode. Conduct a hypothesis test to determine, at the significance level 0.1, whether there is reason to believe that the true percentage of those in the first group who suffer a second episode is different from the true percentage of those in the second group who suffer a second episode? Select the [Rejection Region, Decision to Reject (RH0) or Failure to Reject (FRH0)]
A. [ z < -1.65, RHo]
B. [ z < -1.65 and z > 1.65, FRHo
C. [z > 1.65, FRHo]
D. [z < -1.65 and z > 1.65, FRHo]
E. [z > -1.65 and z < 1.65, RHo]
F. None of the above
Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
7 0
I think its c but I’m not sure
You might be interested in
1:01+0.25.4+32=<br><br>help 10 points​
tia_tia [17]

Answer:

55 39

Step-by-step explanation:

7 0
3 years ago
Rewrite ^3 sqrt 27x-81-5 to make it easy to graph a translation. Describe the graph.
iragen [17]
First we have to rewrite this function.Instead of :^3 sqrt (...) we can write : (...)^(1/3).
f ( x ) = ( 27 x - 81 ) ^(1/3) - 5 = ( 27 * ( x - 3 ) ) ^(1/3) - 5 = = 3 * ( x - 3 )^(1/3) - 5 And this makes it easy to graph a translation.The parent function is y = x^(1/3). The zero of this function is ( 0, 0 ).
Then it will be stretched vertically by a factor of 2 and translated: 3 units right and 5 units down.

8 0
3 years ago
Emma says the GCF of 16 and 12 is 48. Her friend grace says the answer is right. Who is right? Explain help me plz
Lilit [14]
The GCF is only 12 because 16 can't multiply a number that gives you 48 only 12.
6 0
3 years ago
Your cousin renews his apartment lease and pays a new monthly rent. His new rent is calculated by applying a discount of $50 to
nasty-shy [4]

Answer:

  • $1100

Step-by-step explanation:

Let the rent be x

<u>Discounted rent </u>

  • x - $50

<u>Increase applied</u>

  • 10%

<u>Final rent:</u>

  • (x - 50) + 10% = (x - 50)*1.1

<u>We know this is equal to x + 5% = 1.05x, comparing now</u>

  • 1.1(x - 50) = 1.05x
  • 1.1x - 1.05x = 55
  • 0.05x = 55
  • x = 55/0.05
  • x = $1100
6 0
3 years ago
Is 80 a multipul of 10 Asap help or i'll fail
astraxan [27]

Answer:

yes

Step-by-step explanation:

10 20 30 40 50 60 70 80 90 100 etc

4 0
3 years ago
Read 2 more answers
Other questions:
  • Find an explicit rule for the nth term of the sequence. 9, 36, 144, 576, ...
    5·2 answers
  • when 6 is subtracted from the square of a number, the result is 5 times the number. Find the negative solution.
    8·1 answer
  • Angles A and B are supplementary. If angle A= 137° then angle B is
    15·1 answer
  • On the day that a certain celebrity proposes marriage, 252525 people know about it. Each day afterward, the number of people who
    5·2 answers
  • Find the distance between u and v in the coordinate plane​
    8·1 answer
  • A) Area:<br> b) Perimeter:<br> 13 cm<br> add speaker notes
    9·1 answer
  • PLEASE SOMEONE ANSWER THIS
    10·2 answers
  • 1,2,3 or 4?<br><br> Look at the picture. <br> Thank u!
    7·1 answer
  • Pleas help I don’t understand this
    5·1 answer
  • PLEASE HELP - need full solution and steps<br> please don't put some random answer for the points
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!