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Jlenok [28]
2 years ago
11

Hi my names tyrell can i have ur number just type it​

Mathematics
2 answers:
pantera1 [17]2 years ago
7 0

Answer:

Step-by-step explanation:

911 is it

Vanyuwa [196]2 years ago
5 0

Answer:

okay

Step-by-step explanation:

911 911 911

shgwiwgwiqc2iwcw8wfwiw

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A sample of salary offers (in thousands of dollars) given to management majors is: 48, 51, 46, 52, 47, 48, 47, 50, 51, and 59. U
balu736 [363]

Answer:

Step-by-step explanation:

number of samples, n = 10

Mean = (48 + 51 + 46 + 52 + 47 + 48 + 47 + 50 + 51 + 59)/10 = 49.9

Standard deviation = √(summation(x - mean)/n

Summation(x - mean) = (48 - 49.9)^2 + (51 - 49.9)^2 + (46 - 49.9)^2+ (52 - 49.9)^2 + (47 - 49.9)^2 + (48 - 49.9)^2 + (47 - 49.9)^2 + (50 - 49.9)^2 + (51 - 49.9)^2 + (59- 49.9)^2 = 128.9

Standard deviation = √128.9/10 = 3.59

Confidence interval is written in the form,

(Sample mean - margin of error, sample mean + margin of error)

The sample mean, x is the point estimate for the population mean.

Margin of error = z × s/√n

Where

s = sample standard deviation

From the information given, the population standard deviation is unknown and the sample size is small, hence, we would use the t distribution to find the z score

In order to use the t distribution, we would determine the degree of freedom, df for the sample.

df = n - 1 = 10 - 1 = 9

Since confidence level = 95% = 0.95, α = 1 - CL = 1 – 0.95 = 0.05

α/2 = 0.05/2 = 0.025

the area to the right of z0.025 is 0.025 and the area to the left of z0.025 is 1 - 0.025 = 0.975

Looking at the t distribution table,

z = 2.262

Margin of error = 2.262 × 3.59/√10

= 2.57

the lower limit of this confidence interval is

49.9 - 2.57 = 47.33

the lower limit of this confidence interval is

49.9 + 2.57 = 52.47

So it is false

6 0
3 years ago
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Sergeeva-Olga [200]
Enjoy baby ganyuuuuuuuuuu

6 0
3 years ago
What is the domain of the function graphed below?​
vlabodo [156]

Answer:

x < 7

Step-by-step explanation:

the domain of a function defines the valid x values for the function.

as we go from left to right through all possible values of x, we see all values incl. x=-1 are creating a valid function result (y) for this function. until we reach x=7.

the empty ball indicates that there is no y value defined here. and for any value x>7 there is no y value defined.

so, x < 7 is the right one.

5 0
3 years ago
Can someone help me with this please and don’t guess I really need help
zysi [14]

Answer:

it should be (5,4)

Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
The extremes in the proportion 3/4=15/20 are
ollegr [7]

<span>In the form of a/b = c/d in proportions in math, the outer terms are called the extremes and the inner terms are called means. In the given 3/4 = 15/20, the outer terms or the extremes are 3 and 20.</span>

3 0
3 years ago
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