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The 95% confidence interval for the average number of units that students in their college are enrolled in is approximately 11.66 to 12.54 units. This means that we are 95% confident that the true population mean lies within this interval.

Here,

To calculate the 95% confidence interval for the average number of units that students in their college are enrolled in, we can use the formula for a confidence interval for a population mean when the population standard deviation is unknown but can be estimated using the sample standard deviation.

The formula for the confidence interval is given by:

Confidence Interval = Sample Mean ± (Critical Value) * (Standard Error)

where:

Sample Mean (x) is the mean of the sample (12.1 units in this case).

Critical Value is the value from the t-distribution corresponding to the desired confidence level and the sample size.

For a 95% confidence level and a sample size of 45, the critical value is approximately 2.013 (you can look this up in a t-table or use a calculator).

Standard Error is the standard deviation of the sample mean, which is calculated as the sample standard deviation divided by the square root of the sample size.

Given the information in the problem:

Sample Mean (x) = 12.1 units

Sample Standard Deviation (s) = 1.5 units

Sample Size (n) = 45

Confidence Level = 95%

Critical Value ≈ 2.013

Now, let's calculate the standard error:

Standard Error = s / √n

Standard Error = 1.5 / √45 ≈ 0.2236

Now, calculate the confidence interval:

Lower bound of the confidence interval:

12.1 - (2.013 * 0.2236) ≈ 11.66

Upper bound of the confidence interval:

12.1 + (2.013 * 0.2236) ≈ 12.54

So, the 95% confidence interval for the average number of units that students in their college are enrolled in is approximately 11.66 to 12.54 units. This means that we are 95% confident that the true population mean lies within this interval.

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Answer:

2+2= 4

Step-by-step explanation:

QUICK MATHS

Answer:

19

Step-by-step explanation:

Answer:53

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

6

im not really sure how to explain this, using the number line go from -2 to 4, getting you to 6 spaces

Answer:

the simplest way to finish your hw is to ask the Q of your hw here instead of asking us to help with your hw

Answer:

jsjJHzhhzhahahahjsjsjsj hajajsjjsjsjsjjjsjajjajsjzjzjzjsjsjsjjsjsnsjsnjsjsn

Step-by-step explanation:

hope this is helpful to you

Answer:

1) 40%

2) 8%

3) 160%

Step-by-step explanation:

1) a dime is 10 cents. 10+10+10+10 = 40

.40/1.00 = 0.4 move the decimal to places to the right to turn into a percentage. 40%

2) 1 nickel is 0.05 cents and 3 pennies equal 0.03 cents. 0.05+0.03= 0.08 0.08/1.00=0.08

move the decimal to places to the right to turn into a percentage. = 8%

3) a quarter is 0.25 cents and a dime is 0.10 cents.

6 quarters = 0.25+0.25+0.25+0.25+0.25+0.25= 1.50

1.50 + 0.10= 1.60

1.60/1.00= 1.60 move the decimal to places to the right to turn into a percentage 160%

Answer:

Complementary Angles

Step-by-step explanation:

When all angles are added together they have a sum of 90°. Two angles that have a sum of 90° are complementary angles.

I know this is 90° because it is a right angle.

Answer:

The phenotypic ratios are the ratios of visible characteristics. The genotypic ratios are the ratios of gene combinations in the offspring, and these are not always distinguishable in the phenotypes.

Genotype is the genetic make-up of an organism that describes the nature of each trait. (the letters we often write for a certain trait)

Genotype is the genetic make-up of an organism that describes the nature of each trait. (the letters we often write for a certain trait)

Phenotype is the morphology of a living organism .(the trait you usually observe while looking/tracking the organism)

For an Example:

In the flower of a pea plant there are a pink color(RR) or (Rr) and a white color(rr).

When crossing two hybrid ( with two different letters) pink colors,

P  :     Rr        ×      Rr  

G :      R    r        R    r    

F1 :  RR   Rr    Rr    rr

The phenotype ratio will be  (3 pink : 1 white)

The genotype ratio will be  [1 (RR) : 2 (Rr) : 1 (rr)]..

Hence Genotype is the genetic make-up of an organism that describes the nature of each trait. (the letters we often write for a certain trait)

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Answer:

D) 19

Step-by-step explanation:

4 + 5x

4 + 5(3)

4 + 15

19

Answer:

Step-by-step explanation:

Since x = 3, replace any x in the equation with 3.

4 + 5 (3) =

multiply 5 • 3

4 + 15 = 19

Answer:

4- 3s and 2- 2s

Step-by-step explanation:

3+3+2+2+3+3

Answer:

0%

Step-by-step explanation:

im not sure but i got the answer because the square was not have any color

Answer:

It's true.

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

First, you need to turn 12 into 0.12. Then, you multiply that by 25 and boom you get 3.

This is the same every time.

For example, what percent is 28 of 49?

0.28*49=13.72.

Out of 25 students 48% students have blue eyes.

According to the question,

Now, we can calculate the percentage by the formula, [tex](\frac{number}{total})[/tex] x 100 %

∴ percentage of students have blue eyes [tex](\frac{12}{25})[/tex] x 100 % = 48 %

∴ percentage of students have blue eyes are 48 %

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Well, this is a guess. Jim goes before john, but after joe. So Jim is second. John is third, so that leaved Joe.

Joe, Jim, John. But I don't know about the other 2.

---

sorry if this doesn't help

Answer:p=8

Step-by-step explanation:

Add them all and divide by 5.

Answer:

area = length × breadth

6×7 = 42 feet ²

Answer:

11

Step-by-step explanation:

A prime number is a number that cannot be factored other than 1 and that number is self thus, 11 will be the prime number.

The number system is a way to represent or express numbers.

A decimal number is a very common number that we use frequently.

Since the decimal number system employs ten digits from 0 to 9, it has a base of 10.

A prime number is a number that cannot be factored other than 1 and that number is self.

For example, 9 can be written as 3 x 3 thus it will not prime number and 11 cannot be written as two products other than 1 x 11 thus it will be a prime number.

Hence "A prime number is a number that cannot be factored other than 1 and that number is self thus, 11 will be the prime number".

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Answer:

y=-1/3|x+2|+5 is upside down compared to y=|x|, and the slope 1/3 that of y=|x|, the vertex is also shifted left by two units and up by 5.

Step-by-step explanation:

Answer:

x = 3.5

Step-by-step explanation:

diagonals bisect each other so AW = OW

since AO = 22 then AW = 11

11 = 4x - 3

14 = 4x

x = 7/2 or 3 1/2

Step-by-step explanation:

2x+4=x+18

2x-x=18-4( Addition on the Right hand side changes to subtraction on the left hand side and wise-versa.)

1x=14

1x(1*x so X itself)

X=14

Answer:

x+2x+4_x_18=0

2x_14=0

x=14÷2

x=7

Answer:

Step-by-step explanation:

I would help but I can't see the numbers correctly so I can not help.

Answer:

3 - 2 x b

For jalaysha's age.

b + 2

Is maureen's age

Answer:

3-2*b=j

2+b=m

Step-by-step explanation:

Answer:

A, C, D

Step-by-step explanation:

In a proportional relationship, y = kx, k is the constant of proportionality.

A)

4y = x

y = 1/4 x

k = 1/4      Yes

B)

y = 4x

k = 4      No

C)

32y = 8x

y = 8/32 x

y = 1/4 x

k = 1/4    Yes

D)

y = 0.25x

k = 0.25 = 1/4     Yes

E)

1/4 y = 2x

y = 4 * 2x

y = 8x

k = 8     No

Answer: A, C, D