MATHEMATICS COLLEGE

Which of the following measurements issmallest?
a. 12 inches
b. 216 inches
c. 412 inches
d. 12/4 inches

Answers

Answer 1
Answer: I think it might be A

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A popcorn company builds a machine to fill 1 kg bags of popcorn. They test the first hundred bags filled and find that the bags have an average weight of 1,040 grams with a standard deviation of 25 grams. 1.) Fill out the normal distribution curve for this situation. 2.) What percentage of people would receive a bag that had a weight greater than 1115 grams?
sarah can complete a project in 90 minutes and her sister betty can complete it in 120 minutes if they both work on the project at the same time how long will it take them to complete the project
What is the right option?
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You can use both the t statistic and the z statistic to test hypotheses about the mean of population. The test that uses the t statistic is typically referred to as a t test, while the test that uses z statistic is commonly called a z test. Which of the following statements are true of the t statistic? Check all that apply. The t statistic uses the same formula as the z statistic except that the t statistic uses the estimated standard error in the denominator. The t statistic provides an excellent estimate of z, particularly with small sample sizes. The formula for the t statistic is t = (M – μ) / σM. The t statistic does not require any knowledge of the population standard deviation.

Answers

Using the concepts of the t-statistic and the z-statistic, it is found that the correct option is:

The t-statistic does not require any knowledge of the population standard deviation.

The z-statistic is given by:

z = (X - \mu)/((\sigma)/(√(n)))

In which:

  • X is the sample mean.
  • \mu is the population mean.
  • \sigma is the population standard deviation.
  • n is the sample size.
  • The standard error is S_e = (\sigma)/(√(n)).

The t-statistic is similar to the z-statistic, the difference is that the sample standard deviation is used, not the population. Thus:

t = (X - \mu)/((s)/(√(n)))

In which:

  • X is the sample mean.
  • \mu is the population mean.
  • s is the sample standard deviation.
  • n is the sample size.
  • The standard error is S_e = (s)/(√(n)).

For large sample sizes, the sample and population standard deviations are close, thus t is a good estimate of z.

Thus, the correct option is:

The t-statistic does not require any knowledge of the population standard deviation.

A similar problem is given at brainly.com/question/16194574

Answer:

Detailed elaborated answer is given below:

What is an equation of the line that passes through the points (3,4) and (5,8)

Answers

Answer:

i think 5

Step-by-step explanation:

Step-by-step explanation:

In the equation y=mx+b, 'm' is the slope of the line and 'b' is the y-intercept.  

First, you should find the slope of the line.  To do this, use the equation M=y2-y1/x2-x1.  Using the two given points (3,6) and (8,4), you can solve for M.  

M=4-6/8-3

M=-2/5 (-0.4 in decimal form)

Now, your equation is y=-0.4x+b

Next you must solve for b to find the y-intercept.  You can do this by subbing one of the given points in for x and y.  

Using the point (3,6):

y=-0.4x+b

6=-0.4(3)+b

6=-1.2+b

Isolate b:

6+1.2=b

b=7.2

And now you have the equation of the line!

y=-0.4x+7.2 (IN FRACTION FORM: y=-2/5x+36/5)

There are 5 times as many females as males on the maths course at university. What fractionof the course are male?
Give your answer in its simplest form

Answers

Answer:

1/6

Step-by-step explanation:

Males = 1

Females = 5

Ration: 1:5

Male fraction = 1/6

Answer:

Step-by-step explanation:

Let number of male = x

number of female = y

then according to given condition , we get ,

y =5*x

please  

Brain-list it or support me at my U-Tube channel " ZK SOFT&GAMING " I will be thankful

Find mA. 110°
B. 70°
C. 250°
D. 55°

Answers

Answer:

A:100°

Step-by-step explanation:

BECAUSE IS THE SAME
it’s A 110

Same side interior angles are equal

The local amusement park was interested in the average wait time at their most popular roller coaster at the peak park time (2 p.m.). They selected 13 patrons and had them get in line between 2 and 3 p.m. Each was given a stopwatch to record the time they spent in line. The times recorded were as follows (in minutes; mean = 114.15): 118, 124, 108, 116, 99, 120, 148, 118, 119, 121, 45, 130, 118. What is the range?

Answers

Answer:

The range will be 103 because 148-45 = 103

On a coordinate plane, point M is located at (-5,1) and point N is located at (-5,8)

Answers

Answer:

7 units

Step-by-step explanation:

d=√(x2-x1)² + (y2-y1)²

x1=-5

x2=-5

y1=1

y2=8

d=√(-5--5)² + (8-1)²

d=√0² + 7²

d=√49

d= 7 units
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Pls help, and don’t give random answers just so you can have points.