Dion is performing a hypothesis test in which the population mean is 92 and the standard deviation is 2. His sample size is 7 with a mean of 93.5. Which of the following correctly depicts the z-statistic for this data?0.28
0.36
1.98
2.63

Answers

Answer 1
Answer:

Answer:

Option 3rd is correct

1.98

Step-by-step explanation:

Using the formula:

z = (X-\mu)/((\sigma)/(√(n)))

where,

X is the sample mean, \mu is the mean, \sigma is the standard deviation and n is the sample size.

As per the statement:

Dion is performing a hypothesis test in which the population mean is 92 and the standard deviation is 2. His sample size is 7 with a mean of 93.5

⇒X = 93.5, n = 2 , \mu = 92 and \sigma = 2

Substitute these given values to calculate z;

z = (93.5-92)/((2)/(√(7))) = (1.5)/(0.755928946) = 1.98431348

Therefore,  the z-statistic for the given data is, 1.98

Answer 2
Answer:

Answer:

C. 1.98 on edu

Step-by-step explanation:


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Which of the following are accepted without proof in a logical system? A.Axioms B.Theorems C.Postulates D.Common Notionscheck all that apply

Answers

In a logical system, axioms and postulates are the mathematical truths that are accepted without proof.

What is an axiom?

An axiom is an unprovable rule or first principle accepted as true because it is self-evident or particularly useful.

What is an postulate?

A postulate is an assumption, that is, a proposition or statement that is assumed to be true without any proof. Postulates are the basic structure from which lemmas and theorems are derived.

For the given situation,

Mathematicians assume that axioms are true without being able to prove them.

Postulates are the basic structure from which lemmas and theorems are derived.

From the definition, axioms and postulates are the mathematical truths that are accepted without proof.

Hence we can conclude that in a logical system, axioms and postulates are the mathematical truths that are accepted without proof.

Learn more about axioms and postulates here

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Answer:A

Step-by-step explanation:it is A

What is the volume of the square pyramid with base edges 32 mm and slant height 34 mm?9,920 mm3


10,010 mm3


7,680 mm3


10,240 mm3

Answers

Answer:

The answer to your question is 10240 mm³

Step-by-step explanation:

Data

length of the base = 32 mm

length of the height = 34 mm

Formula

Volume of a pyramid = 1/3 x Area of the base x length of the height

Process

1.- Calculate the area of the base

Area = side x side

        = 32 x 32

        = 1024 mm²

2.- Find the height of the pyramid using the Pythagorean theorem

height² = 34² - 16²

height² = 1156 - 256

height² = 900

height = 30

3.- Calculate the volume of the pyramid

Volume = 1/3Area x height

             = 1/3(1024 x 30)

             = (30720)/3 mm³

             = 10240 mm³

Answer:

The answer is 5,940mm^3

Step-by-step explanation:

I got is right on my test

Eight times the difference of a number and seventeen is thirty"?

Answers

Let the number be y;
8*(17-y)=30
8*17-8y=30
136-8y=30
-8y=30-136
-8y=-106
y=-106/=8
y=53/4
difference of a number and 17:   x - 17
eight times that = 8(x - 17)
8(x - 17) = 30

divide both sides by 8
x - 17 = 30/8

x = 30/8 + 17 which is 20.75

2+1=
I still cannot firnd the answer I am so silly plz someone teleel me in 1 min

Answers

3
Is the answer hope it helped
3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 33 3 3

Nilai 9 log 27 + 3 log 9 + 2log 8

Answers

= 15.745001+ 1.80618 = 17.551181 I hope that's help !

During her first year of college, Sara put $2000 in the bank to save for a trip to Italy after graduation. The money earned 3% simple annual interest. After 4 years, how much money did she have in the bank for her trip?

Answers

Answer:

2,240

Step-by-step explanation:

Sara will have US$ 2,251.02 in the bank after 4 years for her trip to Italy.

Step-by-step explanation:

1. Let's review the data given to us for solving the question:

Investment of Sara during her 1st year of college = US$ 2,000

Duration of the investment = 4 years

Annual interest rate = 3%

2. Let's find the future value of this investment after 4 years, using the following formula:

FV = PV * (1 + r) ⁿ

PV = Investment of Sara during her 1st year of college = US$ 2,000

number of periods (n) = 4

rate (r) = 3% = 0.03

Replacing with the real values, we have:

FV = 2,000 * (1 + 0.03) ⁴

FV = 2,000 * (1.03) ⁴

FV = 2,000 * 1.12550881

FV = 2,251.02

Sara will have US$ 2,251.02 in the bank after 4 years for her trip to Italy. Later you round the answer and that gives you 2,240

plz mark me brainliest

a lotStep-by-step explanation: