As a group, students majoring in engineering disciplines have the highest salary expectations, followed by those studying the computer science fields, according to the results of a study. To compare the starting salaries of college graduates majoring in electrical engineering and computer science, random samples of 60 recent college graduates in each major were selected and the following information obtained.

Engineering Major: Mean 56202 and SD 2225
Computer Science Major: Mean 50657 and SD 2375

Required:
a. Find a point estimate for the difference in the average starting salaries of college students majoring in engineering and computer science. What is the margin of error for your estimate?
b. Based upon the results in part a, do you think that there is a significant difference in the average starting salaries for engineers and computer scientists? Explain.

Answer:

12.25π m²

Step-by-step explanation:

Circumference = Diameter x pi

Area = radius squared (^2) x pi

7 divided by 2 = 3.5

3.5^2 = 12.25

12.25π

Answer:

A ≈ 3.9

Step-by-step explanation:

How to solve

A=πr2

C=2πr

A=C2

4π = 72

4·π ≈ 3.8993

Therefore, the circle in square meters in the nearest tenths is A ≈ 3.9

The population of deer at time t=3 years is approximately 4128 deer.

An exponential function is a mathematical function of the form [tex]f(x) = a^x[/tex], where a is a positive constant called the base, and x is the input variable. The exponent x represents the power to which the base a is raised.

The rate of growth of the deer population is given by the function [tex]R(t) = 2000e^{(0.231t)}[/tex], where t is the time in years since t=0.

To find the population at time t=3, we need to evaluate R(3) using the given function:

[tex]R(3) = 2000e^{(0.231\times 3)[/tex]

[tex]R(3) = 2000e^{0.693}[/tex]

R(3) ≈ 4127.72

Therefore, the population of deer at time t=3 years is approximately 4128 deer.

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Answer:

Sugar = 1-2/5 pounds, Flour = 3-1/2 pounds

Together = 5-9/10 pounds

Step-by-step explanation:

sugar = 7(2/10)

flour = 7(5/10)

sugar + flour = 7(2/10) + 7(5/10)

sugar = 14/10 or 1-2/5 pounds

flour = 35/10 or 3-1/2 pounds

Answer:

$ 56.25 is he answer

Step-by-step explanation:

.... .. . . . . . . ............ ......

mary is the 4th childs nam,e

Answer:

Yes, that's correct

Step-by-step explanation:

Answer: I think its B

Step-by-step explanation: hoped this helped :)

Answer:

Step-by-step explanation:

x+ y = 0  

and

-2x + 5y + 2 = 0

Step-by-step explanation:

given line

3x+5y+2=0

5x+3y-2=0

solution

when two line bisect each other then line equation of bisector is express as

  1

and here

A1 = 3

B1  = 5

C1 = 2

and

A2 = 5

B2  = 3

C2 = -2

so now put value in equation 1 we get

solve it we get

-2x + 5y + 2 = 0   1

and

3x+5y+2 = - ( 5x+3y-2 )

solve it we get

8x + 8y = 0

x + y = 0  2

Answer: D -12x +12y -2 =0

Step-by-step explanation:

Edge 2021

Answer:

99.9%

Step-by-step explanation:

Answer:

45.5

Step-by-step explanation: NUN

Answer:

2 3/5 :)

Step-by-step explanation:

Answer:

[tex]y=9x-13[/tex]

Step-by-step explanation:

Slope-intercept form is [tex]y=mx+b[/tex], where m is the slope, and b is the y-intercept. They tell us the slope is 9, so [tex]m=9[/tex]. They also tell us that the y-intercept is (0,-13), which means that [tex]b=-13[/tex]. Plugging both of those values in gives us the equation:

[tex]y=9x-13[/tex]

Answer:

Step-by-step explanation:

When you shift up or down, the function gets added to or subtracted from the expression on the right of the y value.  Put in simpler language, for this question, the equation becomes.

g(x) = f(x) + 13

And the solution is

g(x) = ln(x) - 1 + 13

g(x) = ln(x) + 12

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Answer:

Step-by-step explanation:

The value of a figure dependents from the value of "π"

So, it can be 1374.45 ft³ or 1375 ft³

✏--------------

[tex]Given:- \\\\R_15~ft\\\\R_2=2\\\\v=88[/tex]

[tex]\frac{R_1}{R_2} =\frac{5}{2}[/tex]

[tex]\frac{(R_1)^3}{(R_2)^3} =\frac{v_1}{v_2}[/tex]

[tex]\frac{5^3}{2^3} =\frac{v_1}{88}[/tex]

[tex]8v_1=11,000[/tex]

[tex]v_1=1375ft^3[/tex]

hope it helps...

have a great day!!

Answer:

C

Step-by-step explanation:

Answer:

Ok 9-8=1 times 2 = 2

Step-by-step explanation:

Answer:

x^3−5x+3x^2−15

Step-by-step explanation:

Common math

Answer:

Step-by-step explanation:

that the A on the triangle is pointed in the opposite direction should help you decide what happened.... how far around do you have to turn to be facing in the opposite direction?

if you said  180 ° , you'd be right :)

180 is the green choice, that looks good

Answer:

2961.63

Step-by-step explanation:

First, convert R as a percent to r as a decimal

r = R/100

r = 2.12/100

r = 0.0212 rate per year,

Then solve the equation for A

A = P(1 + r/n)nt

A = 2,500.00(1 + 0.0212/12)(12)(8)

A = 2,500.00(1 + 0.001766667)(96)

A = $2,961.63

Summary:

The total amount accrued, principal plus interest, with compound interest on a principal of $2,500.00 at a rate of 2.12% per year compounded 12 times per year over 8 years is $2,961.63.

Answer:

I=$424

Step-by-step explanation:

I=PRT

I=2500×8×0.0212

I=$424

Answer:

The second graph, the extreme v

Step-by-step explanation:

We know that y=4x passes through 4 on 1. When absolute valued, we add the graph y=-4x. This gives us the graph second to the right.

By the way, can you follow me?

Thanks

Answer:

The point estimate for the true difference between the population means is 0.13.

The 90% confidence interval for the difference between the true mean ages for cars owned by students and faculty is between -0.35 years and 0.61 years.

Step-by-step explanation:

To solve this question, before building the confidence interval, we need to understand the central limit theorem and subtraction between normal variables.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Subtraction between normal variables:

When we subtract two normal variables, the mean is the subtraction of the means while the standard deviation is the square root of the sum of the variances.

A sample of 263 cars owned by students had an average age of 7.25 years. The population standard deviation for cars owned by students is 3.77 years.

This means that:

[tex]\mu_s = 7.25, \sigma_s = 3.77, n = 263, s_s = \frac{3.77}{\sqrt{263}} = 0.2325[/tex]

A sample of 291 cars owned by faculty had an average age of 7.12 years. The population standard deviation for cars owned by faculty is 2.99 years.

This means that:

[tex]\mu_f = 7.12, \sigma_f = 2.99, n = 291, s_f = \frac{2.99}{\sqrt{291}} = 0.1753[/tex]

Difference between the true mean ages for cars owned by students and faculty.

Distribution s - f. So

[tex]\mu = \mu_s - \mu_f = 7.25 - 7.12 = 0.13[/tex]

This is also the point estimate for the true difference between the population means.

[tex]s = \sqrt{s_s^2+s_f^2} = \sqrt{0.2325^2+0.1753^2} = 0.2912[/tex]

90% confidence interval for the difference:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1 - 0.9}{2} = 0.05[/tex]

Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].

That is z with a pvalue of [tex]1 - 0.05 = 0.95[/tex], so Z = 1.645.

Now, find the margin of error M as such

[tex]M = zs = 1.645*0.2912 = 0.48[/tex]

The lower end of the interval is the sample mean subtracted by M. So it is 0.13 - 0.48 = -0.35 years

The upper end of the interval is the sample mean added to M. So it is 0.13 + 0.48 = 0.61 years.

The 90% confidence interval for the difference between the true mean ages for cars owned by students and faculty is between -0.35 years and 0.61 years.

Answer:

6turns

Step-by-step explanation:

Circumference= 1turn

Circumference=πd

22/7 × 49

=154cm

1turn =154cm

?=924cm

924÷154=6turns

Answer:

10 soccer balls

20 cones

Step-by-step explanation:

30/3=10 groups

10*2=20

Use △GHJ, where A, B, and C are midpoints of the sides

HB=14

Given :

Use △GHJ, where A, B, and C are midpoints of the sides

AC = 3y−5 and HJ = 4y+2

Apply mid point theorem

mid segment = half of base

[tex]AC=\frac{1}{2}(HJ)[/tex]

Now we replace AC and HJ

[tex]AC=\frac{1}{2}(HJ)\\3y-5=\frac{1}{2} (4y+2)\\3y-5=2y+1\\Subtract \; 2y\\1y-5=1\\Add \; 5\\1y=1+5\\y=6[/tex]

B is the midpoint . HB is half of HJ

[tex]HB=\frac{1}{2} HJ\\HB=\frac{1}{2}(4y+2)\\x=6\\HB=\frac{1}{2}(4(6)+2)\\\\HB=\frac{1}{2}(28)\\\\HB=14[/tex]

So the value of HB = 14

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Answer:

Just the fraction parts: 11/8 or 1 3/8

Step-by-step explanation:

1 5/8 + 1 6/8 = 3 3/8

Hopefully this helps :3 sorry if wrong :( Plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3

-Bee~

Answer:

The values of g(x): 2,8,2. So now what would the answer be then

Step-by-step explanation: h'(1)=f''(g(1))g'(1)=6f'(2)=6*5=30

Answer:

B.$42.25

Step-by-step explanation:

I I think that's the answer

Answer:

26/5

Step-by-step explanation:

an=a1+(n-1)d

d is common difference

so,

2/5- (-2)=12/5

putting values in above formula

 =-2+(4-1)(12/5)

=-2+3(12/5)

=-2+(36/5)

=26/5