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
Dmitriy789 [7]
3 years ago
11

Question 6 (1.25 points)

Mathematics
1 answer:
Lisa [10]3 years ago
4 0

Answer:

Test statistic Z= 1.713

The calculated Z- value =  1.7130 < 2.576 at 0.01 level of significance

Null hypothesis is accepted

There is no difference between the  mean annual salary of all lawyers in a city is  different from $110,000

Step-by-step explanation:

<u><em>Step(i):-</em></u>

A researcher wants to test if the mean annual salary of all lawyers in a city is

different from $110,000

Mean of the Population  μ = $110,000

Sample size 'n' = 53

Mean of the sample x⁻ = $114,000.

standard deviation of the Population = $17,000,

Level of significance = 0.01

Null hypothesis :

There is no difference between the  mean annual salary of all lawyers in a city is  different from $110,000

H₀:  x⁻ =  μ

Alternative Hypothesis :  x⁻ ≠  μ

<u><em>Step(ii)</em></u>:-

Test statistic

                 Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }

                 Z = \frac{114000-110000}{\frac{17000}{\sqrt{53} } }

                Z =  1.7130

Tabulated value Z = 2.576 at 0.01 level of significance

The calculated Z- value =  1.7130 < 2.576 at 0.01 level of significance

Null hypothesis is accepted

There is no difference between the  mean annual salary of all lawyers in a city is  different from $110,000

You might be interested in
frank is buying a couch for his new apartment. the couch costs d dollars, and the sale tax is 8%. Select all of the following th
givi [52]

Answer:

Step-by-step explanation On the first day of Christmas my true love sent to me love me:

6 0
3 years ago
5. What is the explicit formula for this sequence? 7,28, 112,448, ...
tangare [24]

Answer:

Every number is being multiplied by four, so the next number in the sequence should be 1,792

Step-by-step explanation:

Hope this helped!!

5 0
3 years ago
Read 2 more answers
VERY EASY WILL GIVE BRAINLEST THANK YOU AND FRIEND YOU Determine whenter (18+35)x4= 18+35x4 is true or false. Explain.
Ray Of Light [21]

Answer:

False because on the left side of the equation you are adding 18 and 35 first and on the right you are multiplying 35 and 4 first. This will give you an unequal equation when solved.

Let's solve each side

(18+35)*4=212

but 18+(35*4)=158

8 0
3 years ago
The value of a van depreciates at the rate of 20% per year. Gary buys a new van for £27500. After n years the value of the van i
Cloud [144]
N = the value after 4 years

6 0
3 years ago
Read 2 more answers
Help I don’t know how to do this please help
igor_vitrenko [27]

SOLUTION:

Case: Trigonometry

Method:

Let the distance between the Sun and the Earth be 'z'

The relationship between x, y and z is:

\begin{gathered} tan(x)=\frac{opp}{adj} \\ tan(x)=\frac{y}{z} \\ z=\frac{y}{tan(x)} \\ z=ycot(x) \end{gathered}

Final answer:

In sentence,

The distance between the Sun and the Earth is the product of the distance between the Earth and the moon and the cotangent of the angle x formed using the lines from the Earth and the moon.

8 0
1 year ago
Other questions:
  • What percent of $1.00 are a nickel and a dime?
    7·1 answer
  • If 12 less than 4 times a number is 8, the number is 5. What difference sentence where the unknown number is also 5?
    14·1 answer
  • Fred and Ben each ran laps around the track. Fred completed his run in 16 minutes. Ben completed his run in 3/4 of the amount of
    9·1 answer
  • What to numbers can add up to 30 but multiply to 40?
    7·1 answer
  • Simplify.
    6·1 answer
  • Help me I need help!!!!!
    6·1 answer
  • Please help me how to multiply
    13·2 answers
  • What is the midpoint of 2,6 and 10,12
    12·2 answers
  • Forest habitat is cleared to build a new shopping complex. what does this scenario represent? a loss of biodiversity due to a cl
    15·1 answer
  • URGENT I WILL MARK BRAINLIEST DRAW WHERE THE DOTS GO ON THE GRAPH
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!