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
alexandr1967 [171]
3 years ago
12

Suppose we have a set of paired data, and let d = xafter − xbefore . The null hypothesis is H0 : μd = 0, the alternative hypothe

sis is Ha : μd ≠ 0, and the population standard deviation σ is not known. Jordan collects a sample of size n = 9 and computes d¯= 2.2 and sd = 3.3A) What is the value of the test statistic?B) The probability of obtaining a test statistic greater than Jordan's test statistic is 0.0403. Use this probability to determine the P-value for Jordan's hypothesis test. (Round to three decimal places.)
Mathematics
1 answer:
Sergio039 [100]3 years ago
7 0

Answer:

(a) The value of the test statistic is, <em>t</em> = 2.

(b) The <em>p</em>-value of the test is 0.081.

Step-by-step explanation:

The hypothesis for the paired difference test is:

H₀: \mu_{d}=0 vs. Hₐ: \mu_{d}\neq 0

<u>Given</u>:

\bar d=2.2\\SD_{d}=3.3\\n=9

(a)

The test statistic is:

t=\frac{\bar d}{\frac{SD_{d}}{\sqrt{n}} } \\=\frac{2.2}{\frac{3.3}{\sqrt{9}} }\\=2

The value of the test statistic is, <em>t</em> = 2.

(b)

It is provided that the P(T>2)=0.0403.

But the hypothesis test is two-tailed.

The <em>p</em>-value for the two-tailed test is:

p-value=2P(t>2) or p-value=2P(t

The <em>p</em>-value is:

p-value=2P(t>2)=2\times0.0403=0.0806\approx0.081

Thus, the <em>p</em>-value of the test is 0.081.

You might be interested in
There are 80 seats in the small screen.
DanielleElmas [232]
One quarter of 80 is 20
7 0
3 years ago
Which one would be a result in a repeating decimal 5/11 1/9 3/4 3/7
Basile [38]
I think it would be 5/11
If I'm wrong plz don't report me 
Have A Good Day
3 0
3 years ago
I need this ASAP!!<br><br><br> calculate the rate of change on this graph
Vilka [71]

Answer: The slope is 2

Step-by-step explanation: For questions like these, find 2 points on the graph that are on whole numbers, for example (10,60) and (20,80). Then use the formula y2-y1/x2-x1 to solve for the slope, which would be the same thing as rate of change. 80-60/20-10 which equals 2. The slope would be 2.

8 0
3 years ago
Complete the equation of the line through (2,1)and (5,-8)
Alex73 [517]

m =  \frac{ - 8 - 1}{5 - 2}  \\   = \frac { - 9}{3}  \\  m  =  - 3 \\ y = mx + c \\ 1 =  - 3(2) + c \\ c = 7 \\ y = mx + c \\ y =  - 3x + 7
4 0
3 years ago
Help me with this pls anyone
podryga [215]

Answer:

B

Step-by-step explanation:

x^2=3x-2(subtract 3x and add 2) x^2-3x+2=0(group) (x-1)(x-2)=0(find x) x=1;x=2

find y values for x values and check:

1^2=1,     pair 1:(1,1); 3(1)-2=3-2=1, same pair

2^2=4, pair 2:(2,4);  3(2)-2=6-2=4, same pair

pairs: (1,1);(2,4)

5 0
3 years ago
Other questions:
  • A department store sells small boxes in which customers can store potpourri. The diagram below shows one of the boxes. The diagr
    10·1 answer
  • Evaluate -6(x-2y) when x= -3 and y= -5<br> a. -42<br> b. 80<br> c. -80<br> d. -16
    14·2 answers
  • What is 389/1000 converted into a decimal
    12·2 answers
  • Which unit is used to measure distance? A. Grams B. Seconds C. Millimeters D. Centers
    11·1 answer
  • Given that standard deviation and mean of a data set for 20
    8·1 answer
  • 7) Find the perimeter of triangle ABC. Round all answers to the nearest tenth.[6 points)
    9·1 answer
  • Factor the expression using the GCF.<br><br> 26x - 13
    10·2 answers
  • Can someone help its algebra?
    8·1 answer
  • 1. temperature in region 12 rises up to 36 ​
    11·1 answer
  • F(x) = 5x – 2<br><br> slope of f =
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!