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
kogti [31]
3 years ago
12

College Students and Drinking Habits: A public health official is studying differences in drinking habits among students at two

different universities. They collect a random sample of students independently from each of the two universities and ask each student how many alcoholic drinks they consumed in the previous week. Sample Statistics:
size(n) Mean (X) SD(s)
sample1 40 6.9 2.3
sample 2 49 5.7 1.9
The official conducts a two -sample t-test to determine whether these data provide significant evidence that students at University 1 drink more than students at University 2. The test statistics is t=2.64 with a P-value 0.005. Which of the following is an appropriate conclusion?
A) The samples provide significant evidence that students at University 1 drink more than students at university 2.
B) The samples do not provide statistically significant evidence.
C) We ca not use the t-test in this case because the variables (number of drinks) are likely skewed to the right at each university.
Mathematics
1 answer:
Sophie [7]3 years ago
3 0

Answer:

Option A

Step-by-step explanation:

From the outlined data, the p value calculated was given as 0.005 which is way less than 0.05, thus we will reject the null hypothesis that there is no difference in drinking habit among students at two different universities. We can then conclude that the samples provide significant evidence that students at University 1 drink more than students at university 2.

You might be interested in
100 POINTS + BRAINLIEST !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11<br> Solve x³ - 9x^(1.5) + 8 = 0
VLD [36.1K]

Answer:

x=1, x=4

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Plz plz help me i really need help
olya-2409 [2.1K]
Area = πr². So you have the diameter which is 56 millimeters. And the radius (r) is half the diameter, so the radius would be 28 mm. Square 28 would be 784, multiplied by π would equal 2463.00864mm. Rounded to the nearest hundredth would be 2843.01mm².

3 0
3 years ago
PLZ HELP QUICK!!
Amiraneli [1.4K]

Answer:

2205

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
(HELP!)
denis-greek [22]

Let X be the random variable denoting the number of girls that are born. Then X has a binomial distribution on n=125 babies and probability of getting a girl p=0.5. The probability we want is

\mathbb P(X\ge60)=\displaystyle\sum_{x=60}^{125}\binom{125}x0.5^{125-x}0.5^x\approx0.704=70.4\%

7 0
3 years ago
Read 2 more answers
Find the solution to the equations. Will Mark Brainliest
vova2212 [387]

Answer:

(- 1, 1 )

Step-by-step explanation:

Given the 2 equations

2x - y = - 3 → (1)

x + y = 0 → (2)

Adding the 2 equations term by term will eliminate the term in y, that is

3x = - 3 ( divide both sides by 3 )

x = - 1

Substitute x = - 1 into either of the 2 equations and solve for y

Substituting into (2)

- 1 + y = 0 ( add 1 to both sides )

y = 1

Solution is (- 1, 1 )

7 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP ASAP 25 PTS
    5·1 answer
  • you are to draw two graphs of lines. one line needs to have a slope of 2/3. and the second line needs to have a slope of -4
    8·1 answer
  • What are the smallest and largest possible numbers in base 3?
    5·1 answer
  • Is it geometric or arithmetic? Why
    8·1 answer
  • Simplify 2x + x<br> a) 2x^2<br> b) 3x<br> c) 3x^2
    8·2 answers
  • Solve (x - 2 &lt; 5) U (x + 7 &gt; 6).
    11·1 answer
  • luke earned $54 after mowing 3 lawns. write an equation comparing earnings to lawns mowed .how much would luke earn after mowing
    8·2 answers
  • Find the mean and the MAD. [Note: Type your answers as decimal numbers, rounded to the nearest tenth.] 135, 160, 145, 155, 170,
    7·1 answer
  • Find the value of 9u +8 given that -2u-1 =3.<br> Simplify your answer as much as possible.
    15·1 answer
  • This graph represents the positions of two turtles in a race.On the same axes, draw a line for a third turtle that is going half
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!