A business analyst is investigating whether the mean amount of purchases made by customers at an online department store is greater than $100. The analyst obtained a random sample of 56 orders and calculated a sample mean of $102.30 and a sample standard deviation of $5.30.
Which of the following is an appropriate test for the investigation?

Answers

Answer 1

Answer:

B

Step-by-step explanation:

I don't know

Answer 2

An appropriate test for the investigation is, One sample t-test for sample mean. So option B is correct

What is a random sample ?

The process of selecting a sample of data from a population in order to draw conclusions about the population is known as random sampling. Additionally known as probability sampling. Non-probability sampling, often known as non-random sampling, is this sample's opposite. Simple random sampling, stratified sampling, cluster sampling, and multistage sampling are the main forms of this sampling. Convenience samples are often referred to as non-arbitrary samples in sampling methodologies.

Given that,

Population mean = $100

Sample = n = 56

Sample mean =  $102.30

sample standard deviation = $5.30

So, all the data mean, standard deviation is given

therefore, t-test used and one type of sample used as well

Hence, It is one-sample t-test for sample mean

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Answer:

A translation of 5 units up

and

A translation of 2 units to the right

Step-by-step explanation:

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What is the value of x?

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Is it supposed to be a whole number? I got a decimal as an answer.

X = 1 2/3 or 1.6667

Find the Mean Absolute Deviation.
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8
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The mean would be 7 I think I am not sure

A restaurant has a total of 30 employees there are 14 who work in the evening and the rest work during the day what is the ratio of employees who work in the evening to employees who work during the day?



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B: 7:15
C: 8:7
D: 8:15

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A is the answer I hope it’s correct

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the degree is 6
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Answer:

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Step-by-step explanation:

Step-by-step explanation:

hii I'm fatima ahnjong best Friend so you can talk to her with my account

A population of 805 cheetahs decreases by 10% per year. How many cheetahs will there be in the population after 6 years?

Answers

Answer:

Step-by-step explanation:

y = a(b)^x

a would represent the initial value.

b would represent the change

x represents the number of years

y = 805(0.9)^6

y = 805(0.531441)

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A school bus travels a total of 130 miles round trip taking students on a field trip. The bus takes 3 hours from start to finish. What is the average speed of the school bus on the field trip.

Answers

Answer: I think it’s 43

Step-by-step explanation:

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Answers

Answer:

x=68°

Step-by-step explanation:

In quadrant 3 the FULL  value is 90°

90°-22°

=68°

-------------------------------------------------------

Hope this helped!!

Answer:

68 degrees

Step-by-step explanation:

What is the inverse function of f(x) =x/ x-2

Answers

Answer:

f^-1(x)=2x/x-1

Step-by-step explanation:

Answer:

f-1(x) = 2x/x-1

Step-by-step explanation:

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Answers

Answer:

the answer is c...........

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Answers

Answer:

a

Step-by-step explanation:

Answer:

Answer=(X + 5, Y - 4)

Step-by-step explanation:

X + 5 means you move to the right 5 places then Y - 4 means you move down 4 places.

The total bill for a group of friends having dinner was $130. ​They paid the entire bill using only $5 and $ 10$ bills. ​In total, there were 16 bills used. ​How many of each type of bill were used to pay the bill?

Answers

Answer:

6 five dollar bills and 10 ten dollar bills

Step-by-step explanation:

130 = 5x + 10y

x + y = 16

PLEASE HEEEEEEEEEEEEEEEEEELP

Answers

I’m pretty sure it’s 3 and a 2

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Answers

The descending values of the numbers is 0.98 > 0.925 > 0.88 > 0.7

Given data ,

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Answers

Answer:

1

Step-by-step explanation:

:)

Answer:

1

Step-by-step explanation:

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6x + 3 = 9     *subtract 3 from both sides*

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x=1

Find the Volume of the Pyramid. Show your work.

Answers

Answer:

I think it's 62. volume is basically just adding the length, width, and height

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Answers

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Answers

Answer:

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Step-by-step explanation:

What two measures of central tendency about the roller coasters cannot be determined using the box plot?

Answers

Answer:

Mode and mean

Step-by-step explanation:

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Answers

Answer:

I beleive the answer is 9

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Question 10
A pair of sneakers is originally priced at
$125. They are on sale for $75. What is
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Answers

Answer: 40% discount

Step-by-step explanation:

First lets find the difference between original price and sale price so $125-$75= $50

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Answer:

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Answers

answer :

3/4

Step-by-step explanation:

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Answer:

Each person will get 3/4 of a pizza.

Step-by-step explanation:

If you cut each pizza equally into four slices and divide the 12 pieces among the four people, each will receive three pieces.

9
10
Save
Submit
Given that the function graphed is f(x), what is f(4)?
A)
-2
B)

4
o
-6
D
ep.com/modules/questions/qq.php?testid-1020&assignment_id=43384472&strand-5066&element-40471&totalQuestions-108ck-UTCXIN TYEETK8condition-random

Answers

One is the negative number to the 10 it’s not because their towo dif one

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Answer:

Check pdf

Step-by-step explanation:

check pdf it should help you out a lot!

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Answers

Answer:

354294

Step-by-step explanation:

a₁ = 6 = 6 * (-3)⁰

a₂ = -18 = 6 * (-3)¹

a₃ = 54 = -18 * (-3) = 6 * (-3)²

a₁₁ = 6 * (-3)¹⁰ = 354294

Tamekia's garden has 9 tomato plants, 5 pepper plants, 3 squash plants, and 6 pumpkin plants. For every 3 tomato plants in Tamekia's garden, there is 1 _____ plant. *

Answers

Answer:

There is 1 squash plant for every 3 tomato plants.

Step-by-step explination:

so we have 9,5,3, and 6.  

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every week a company provides fruit for its office employees. They can choose from among five kinds of fruit. What is the probability distribution for the 30 pieces of fruit, in the order listed?
(answer choices in the picture) PLZ HELP!

Answers

Answer:

option A 1/5, 3/10, 1/15, 4/15, 1/6

The probability distribution for the 30 pieces of fruit is,

A. 1/5, 3/10, 1/15, 4/15, 1/6.

What is a probability distribution?

A probability distribution is a mathematical function used in probability theory and statistics that estimate the likelihood that various possible outcomes of an experiment will occur.

Given, Every week a company provides fruit for its office employees and the total number of fruits is 30 and the number of different types of food is

listed in the table.

Therefore, The probability distribution of apple (A) is 6/30 = 1/5.

Similarly, P(B) = 9/30 = 3/10.

P(L) = 2/30 = 1/15.

P(O) = 8/30 = 4/15.

P(P) = 5/30 = 1/6.

So, The distribution table is 1/5, 3/10, 1/15, 4/15, 1/6.

learn more about probability distribution here :

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