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
lozanna [386]
3 years ago
13

Fluoxetine, a generic anti-depressant, claims to have, on average, at least 20 milligrams of active ingredient. An independent l

ab tests a random sample of 80 tablets and finds the mean content of active ingredient in this sample is 18.7 milligrams with a standard deviation of 5 milligrams. If the lab doesn't believe the manufacturer's claim, what is the approximate p-value for the suitable test
Mathematics
1 answer:
san4es73 [151]3 years ago
6 0

Answer:

t=\frac{18.7-20}{\frac{5}{\sqrt{80}}}=-2.326    

df=n-1=80-1=79  

p_v =P(t_{(79)}  

Step-by-step explanation:

Information given

\bar X=18.7 represent the sample mean for the content of active ingredient

s=5 represent the sample standard deviation for the sample  

n=80 sample size  

\mu_o =20 represent the value that we want to test

t would represent the statistic

p_v represent the p value for the test

System of hypothesis

We need to conduct a hypothesis in order to check if the true mean for the active agent is at least 20 mg, the system of hypothesis would be:  

Null hypothesis:\mu \geq 20  

Alternative hypothesis:\mu < 20  

The statistic would be:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

Now we can calculate the statistic:

t=\frac{18.7-20}{\frac{5}{\sqrt{80}}}=-2.326    

P value

The degrees of freedom are calculated like this:

df=n-1=80-1=79  

Since is a one left tailed test the p value would be:  

p_v =P(t_{(79)}  

You might be interested in
CAN I PLEASE GET SOME HELP WITH THIS? ANYONE!
Tpy6a [65]

Answer:

4/5

Step-by-step explanation:

Hope this helped :)

8 0
3 years ago
Three of every 5 pizzas that miggys pizza sels are cheese pizza miggys slod 80 pizza today how many of them would you expect wer
True [87]
48 of the pizzas would be cheese because you divide 80 by 5 and get 16 then multiply that by 3 to get 48
7 0
3 years ago
The sum of the two digits of a number is 16. The number formed by reversing the digits is 18 more than the original number. Dete
nydimaria [60]
9u-9t=18

original no. is 10t+u
reversed no. is 10u+t

so its (10u+t)-(10t+u)=18
which gives 9u-9t=18
5 0
2 years ago
Joshira makes and sells crafts.
Maksim231197 [3]

Answer: 6

Step-by-step explanation:

i think joshira makes 6 item in 8 hours.

i got my answer by multiplying 3/4 with 8

7 0
3 years ago
Read 2 more answers
What is the equation of the graphed function?
choli [55]

Answer:

( 2 - x )^2

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Which property was applied to create this equivalent expression? 7x+(5+6×)---&gt;(7x+5)+6x
    8·2 answers
  • 1) 4x-7y=3<br> x-7y=-15<br><br> 2) 9x+8y=15<br> 9x+8y=30
    11·1 answer
  • Connie Hamm demonstrates microwave ovens. She earn $5.00 per demonstration for the first 10 demonstrations and $6.00 for each de
    7·1 answer
  • What is the slope of a line perpendicular to the line whose equations is x-y=6
    5·1 answer
  • Select the choice which shows all of the diagonals in this polygon and tells how many there are.
    15·2 answers
  • Please answer ASAP ❤️Will earn 15 points (hope your answers are valid )
    13·1 answer
  • Which expression is equivalent? Please see pictures attached!
    9·1 answer
  • NWMS has 840 students. Ben surveys a random sample of 60 students and finds that 8 of them have more than 3 siblings. How many s
    10·1 answer
  • A/5=b/7 if b#0 what is the value of a/b​
    14·1 answer
  • What would 2 x (x-3) sum be
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!