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uranmaximum [27]
3 years ago
13

Solve for x using trigonometric ratios 10 and 11 please

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
5 0
I’m on the same question I need help to???
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Question 6 (1.25 points)
Lisa [10]

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

4 0
3 years ago
Simone takes dance lessons. Her shoes cost $150 per year, her tights and leotards cost $70 per year, her hair accessories cost $
KATRIN_1 [288]
Ok so all you do is add 150+70+15+1000. That equals to $1235
6 0
3 years ago
¿Cuál es la probabilidad de que al lanzar un dado se obtenga un número impar y menor que 5?
NemiM [27]

Answer:

4/6 or 66.67 percent

Step-by-step explanation:

5 0
2 years ago
Jessica is selling books during the summer to earn money for college. She earns a commission on each sale but has to pay for her
kap26 [50]
The slope of her function represents the amount she earns per door that she knocks on.
7 0
3 years ago
Read 2 more answers
5. Find the constant of proportionality for the equation 5y = 75x.
gizmo_the_mogwai [7]
C. K= 70 would be right
7 0
3 years ago
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