This assignment is related to your Chapter 8 (Salkind) material. Make sure you save a copy of your answers to all the questions from this assignment to use in your discussion this week! I suggest taking a picture of your answers or copy and pasting them into a word document.

Imagine you’ve just started a small business, and you just launched your social media page for your business. You’re curious about how many “likes” other similar new small businesses get on their posts, so you collect data from 19 similar new businesses on the number of likes they received on their most recent post and you found the following answers:

Likes Received on Similar Pages

320

320

340

340

345

345

350

350

350

350

350

350

350

355

355

360

360

375

375

Flag question: Question 1

Question 1

Construct a line plot of the data. Use number of likes received as your x axis and frequency (number of businesses with each value) as your Y axis. Create your line plot and then upload it here (if you create it on your computer, save and upload the file; if you create it with pen and paper, take a photo and upload that). If you are using an iPhone you will need to convert the picture to a .jpeg format, we will NOT be able to read images submitted in the .HEIC format.

Upload

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Question 2

Calculate the mean for the dataset (above). Round your answer to three decimal places.

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I’m going to help you out a little bit here, and I’m going to give you the standard deviation for this dataset:

s = 14.033

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Question 3

How many businesses are above the mean in this dataset?

Group of answer choices

11

6

5

13

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Question 4

How many are below the mean?

Group of answer choices

12

6

13

5

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Question 5

Calculate the z score for the business that received 320 likes. Round your answer to three decimal places.

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Question 6

Calculate the z score for the businesses that received 340 likes. Round your answer to three decimal places.

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Question 7

Calculate the z score for the business that received 345 likes. Round your answer to three decimal places.

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Question 8

Calculate the z score for the businesses that received 350 likes. Round your answer to three decimal places.

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Question 9

Calculate the z score for the businesses that received 375 likes. Round your answer to three decimal places.

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Question 10

On your first post you received 368 likes. You want to know what percentage of the new business population gets more likes than you (that is, what percentage of the population gets 368 likes or more (Hint: use the z table in the appendix of your textbook to answer this question). Note, you are examining what percentage of the total population has more likes, NOT just this sample, so you need to use the table to answer this question! Show your work on this. To get full credit, you must demonstrate all calculations, values you used from the appendix, and steps you took to get your answer (that is, your answer must include the z score, the area under the curve that you found in the appendix, and how you came to your final answer).

p

0 words

Flag question: Question 11

Question 11

If you randomly select a new business from social media, and count the number of likes on their recent post, what percentage of the time would that business have between 315 and 350 likes? (Hint: use the z table in the appendix of your textbook to answer this question)? To get full credit, you must demonstrate all calculations, values you used from the appendix, and steps you took to get your answer (that is, your answer must include the z score, the area under the curve that you found in the appendix, and how you came to your final answer).