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
jeyben [28]
4 years ago
7

Use the t-distribution and the sample results to complete the test of the hypotheses. Use a significance level. Assume the resul

ts come from a random sample, and if the sample size is small, assume the underlying distribution is relatively normal.Test H0: μ= 4 vs Ha: μ≠4 using the sample results x= 4.8, s= 2.3, with n= 15.Give the test statistic and the p-value.
Mathematics
1 answer:
Ksenya-84 [330]4 years ago
3 0

Answer:

Test statistic = 1.3471

P-value = 0.1993

Accept the null hypothesis.

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = 4

Sample mean, \bar{x} = 4.8

Sample size, n = 15

Alpha, α = 0.05

Sample standard deviation, s = 2.3

First, we design the null and the alternate hypothesis

H_{0}: \mu = 4\\H_A: \mu \neq 4

We use two-tailed t test to perform this hypothesis.

Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }

Putting all the values, we have

t_{stat} = \displaystyle\frac{4.8 - 4}{\frac{2.3}{\sqrt{15}} } = 1.3471

Now, we calculate the p-value.

P-value = 0.1993

Since the p-value is greater than the significance level, we fail to reject the null hypothesis and accept it.

You might be interested in
8m-6=2(4m-_____) <br> Factoring using GFC
Shtirlitz [24]
8m-6= 2(4m-3)

all you needed to do was to divide 2 into every
term

Hope this helps
6 0
3 years ago
Volume is a three-dimensional measure.<br> true<br> false
Xelga [282]
True, volume is a tree dimensional measure.
7 0
3 years ago
Find the value of x.
Deffense [45]

Answer:

Step-by-step explanation:

the funny lines in the corners of the triangle mean that the angles are the same.  Maybe you knew that?

The supplementary angle at the top right is just

180- 17x -23

now you have expressions for each of the 3 angles of the triangle which all add up to 180°

180= 7x + 2  +  7x +2   +  180- (17x -23)

180 = 14x +4 + 180 - 17x +23

180 = -3x +207

3x = 27

x = 9

6 0
3 years ago
A clothing company sells slacks that are either blue or gray and pleated or non-pleated. Last month, the company sold 5 times as
abruzzese [7]

Answer:

88

Step-by-step explanation:

5GP= BP

2BNP= GNP

BP+BNP=333

GP+GNP=225

BNP= 333-BP

BNP= 333-5GP

GP= 225-GNP

GP= 225-2BNP

BNP=333-5(225-2BNP)

BNP=333-1125+10BNP

-9BNP=-792

BNP=88

Hope it helps :)

Mark Brainliest if possible.

7 0
4 years ago
Read 2 more answers
Which expression is equivalent to 1/5(15+10x-5)
tamaranim1 [39]

Answer:

simplify the expression:  2x+2

Step-by-step explanation:

8 0
4 years ago
Other questions:
  • What number must you add to complete the square x^2+8x=11
    5·2 answers
  • What are the x-intercepts of the graph of the function f(x)=x2+ 4x-12
    11·2 answers
  • A scuba diver finds a treasure chest in the ocean when she opens it up she discovers that it is filled with 3,567 gold coins and
    10·1 answer
  • Which of the following is a factor of 64x^3 + 343? ( 1 point)
    8·1 answer
  • Carle is cutting pieces of string that are exactly 24 3/8 inches long. How many pieces can she cut from a ball of string that ha
    9·2 answers
  • “the product of a number and 3 is the same as the sum of that number and sione half of a number is 8 less than the number itself
    10·1 answer
  • Write the following as fractions
    11·1 answer
  • How to wright 1/6 as a decimal
    11·1 answer
  • How are the rectangular prisms related below? Can you show a different rectangular prism with the same relationship? Complete th
    7·1 answer
  • Find the value of x? <br> A.5/2\2<br><br> B.5 <br> C.10<br> D.10/2
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!