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
aev [14]
3 years ago
8

In order to check for regional bias in a widely used standardized test, researchers checked for a difference in the means of ran

dom samples of scores from two regions. The sample mean of the 110 scores from Region 1 was 497 with standard deviation 112. The sample mean of the 100 scores from Region 2 was 511 with standard deviation 114. Let μ1 be the population mean score from Region 1, and let μ2 be the population mean score from Region 2. The researchers assumes the population standard deviations are equal and used the alternative hypothesis Ha:μ1−μ2≠0. If the test statistic is t≈−0.90 and the number of degrees of freedom is 208, what is the p-value for this hypothesis test?
Mathematics
1 answer:
lbvjy [14]3 years ago
6 0

Answer:

p-value = 0.369

Step-by-step explanation:

Test of hypothesis which has its the alternative hypothesis as Ha:μ1−μ2≠0 is a two tailed test. Therefore, P-value for a two-tailed test with test statistic t≈−0.90 and the number of degrees of freedom = 208

P-value = 2 X P( t(208) < - 0.90)  

    = 2 X 0.1846

    = 0.369  

You might be interested in
How much will he spend if he buys 4 pizzas and 5 drinks?
gtnhenbr [62]

Answer:

How much is each pizza and how much is each drink? set up your equation as 4p+5d = (your answer)

Step-by-step explanation:

3 0
3 years ago
................................................................................................................................
Nikitich [7]

^_^ 

5 0
3 years ago
A stop sign is in the shape of a regular octagon. A regular octagon can be created using eight triangles of equal area. One tria
Alex_Xolod [135]

Answer: the answer is B.) 1080 sq in

Step-by-step explanation: edge 2021 i took the test

5 0
3 years ago
Discussion Prompt: A fair coin is tossed twice and the number of heads is recorded. Jose says the P(1 head) = 1/2, while Jeff st
NemiM [27]

Let H represent heads and T represent tails.

Writing HH means we get two heads and HT means we get heads first, then tails second, and so on.

We have these four possible outcomes when flipping two coins

  • HH
  • HT
  • TH
  • TT

Of those four outcomes, two of them have exactly one head show up (HT and TH). The probability of getting exactly one head is 2/4 = 1/2, so this is why Jose is correct.

8 0
3 years ago
Match the vocabulary word with the correct definition. 1. conclusion The if clause in a statement. 2. conditional or implication
jekas [21]
<span>1. conclusion
</span>The then clause in a statement. <span>

2. conditional or implication
</span>Two statements connected by the form If . . ., then....
<span>
3. hypothesis
</span>The if clause in a statement.
<span>

</span>
5 0
3 years ago
Other questions:
  • Round 3.962 to the nearest tenths
    12·2 answers
  • A. 4 packs of pencils and 3 packs of erasers B. 4 packs of pencils and 5 packs of erasers C. 5 packs of pencils and 3 packs of e
    15·1 answer
  • Evaluate the expression 4y/x for x=8 and y=0
    6·1 answer
  • The cost of a pack of chewing gum in a vending machine is $0.75.The cost of a bottle of juice in the same machine is $1.25.Julia
    6·2 answers
  • 9.1 dividing by 3576
    7·1 answer
  • Find the distance between (-4,-3) and (-8,7)​
    5·1 answer
  • Simplify pls<br><br> 8(4x-12)
    14·1 answer
  • In which step did Fiona make an error?<br><br> Step 1<br> Step 2<br> Step 3<br> Step 4
    15·1 answer
  • Hey guys, hope your day is going well, can you plz help me with is question thank you, i will give 10 pts.
    13·1 answer
  • 100 POINTS!!!!! WILL GIVE BRAINLIEST!!!!!!! <br> Show that: (a + bi)^2 = (a + b)(a − b) + 2abi
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!