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
vampirchik [111]
3 years ago
12

If the calculated test statistic is 2.148 when the critical value is 2.348, should you reject or not reject the null hypothesis,

and please explain?
thank you
Mathematics
1 answer:
Lisa [10]3 years ago
8 0
The approach of critical value is used to determine likely or unlikely through determination whether observed test statistics is more than it would have been if null hypothesis was true. In other words, test statistics is compared to critical value and decision made.
If test statistics is more than critical value, the null hypothesis is rejected. Otherwise, null hypothesis is not rejected.

In the current scenario, test statistics (2.148) is less than critical value (2.348) and thus null hypothesis is not rejected.
You might be interested in
I need help with this problem too
liq [111]
132 drinks were in stock initially
8 0
3 years ago
Read 2 more answers
12 ÷ 4 + (3 − 2) × 7
Andre45 [30]

Answer: step-by-step

Step-by-step explanation:

answer: 10

to solve you have to follow PEMDAS

3 0
2 years ago
which is not a result of multiplying the height of a rectangular prism by a scale factor of 1/2 and I need work to
chubhunter [2.5K]
C is the answer


for example

assume that the height of a rectangular prism is 2, width is 1 and length measures 3

the volume will be 6
(2*1*3)

if we multiply height with the scale factor of 1/2
it becomes 1

so the volume will be 3
(1*1*3)

this situation goes for other examples, too


good luck
5 0
3 years ago
What is the smallest integer $n$, greater than $1$, such that $n^{-1}\pmod{130}$ and $n^{-1}\pmod{231}$ are both defined?
olasank [31]

First of all, the modular inverse of n modulo k can only exist if GCD(n, k) = 1.

We have

130 = 2 • 5 • 13

231 = 3 • 7 • 11

so n must be free of 2, 3, 5, 7, 11, and 13, which are the first six primes. It follows that n = 17 must the least integer that satisfies the conditions.

To verify the claim, we try to solve the system of congruences

\begin{cases} 17x \equiv 1 \pmod{130} \\ 17y \equiv 1 \pmod{231} \end{cases}

Use the Euclidean algorithm to express 1 as a linear combination of 130 and 17:

130 = 7 • 17 + 11

17 = 1 • 11 + 6

11 = 1 • 6 + 5

6 = 1 • 5 + 1

⇒   1 = 23 • 17 - 3 • 130

Then

23 • 17 - 3 • 130 ≡ 23 • 17 ≡ 1 (mod 130)

so that x = 23.

Repeat for 231 and 17:

231 = 13 • 17 + 10

17 = 1 • 10 + 7

10 = 1 • 7 + 3

7 = 2 • 3 + 1

⇒   1 = 68 • 17 - 5 • 231

Then

68 • 17 - 5 • 231 ≡ = 68 • 17 ≡ 1 (mod 231)

so that y = 68.

3 0
3 years ago
Roger pays $66.00 for DVDs and 2 CDs. Joey pays $47.00 for 2 DVDs and 3 CDs. What is the price of one DVD? What is the price of
Aloiza [94]
You're in high school and can't do this, wow that's sad since i'm in seventh grade. Anyway you divide 2 from $47.00 to get $23.50 and 3 divided by $47.00 to get $15.66 repeated. round to get $15.67 or $15.70.
4 0
4 years ago
Other questions:
  • (1 point) All that is left in a packet of candy are 7 reds, 3 greens, and 3 blues.
    9·1 answer
  • Why are percents rational numbers
    10·2 answers
  • 1. $210.00 increased by 40% is what percent of $210.00? 2. How much money is a $210.00 increased by 40%?
    14·1 answer
  • Tom, Lisa, and Jane are competing in a cooking competition. They all used different amounts of sugar from a can containing 4 pou
    14·1 answer
  • he width of a rectangle is 20 units. Can the perimeter P of the rectangle be 64 units when its length x is 11 units
    11·1 answer
  • a cylinder has radius 1.6 meters. it’s volume is 95 cubic meters. find it’s height to the nearest tenth of a meter
    9·1 answer
  • Use the x-intercept method to find all real solutions of the equation.<br> x^3-8x^2+9x+18=0
    9·2 answers
  • Pls can someone help me ? It’s urgent :((
    13·2 answers
  • Which one is it? Free p0ints! 3 PART Question!!
    8·1 answer
  • (c) 7 bananas and 5 mangoes cost $36. Write an equation in b and m to represent the information.​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!