Question: 1. Correct numerical value In order to apply results from the Central Limit Theorem, we can safely use z-scores as critical values in the margin

1. Correct numerical value

In order to apply results from the Central Limit Theorem, we can safely use z-scores as critical values in the margin of error formula as long as our sample size for quantitative data contains at least ____________ values.

2. What are the other two components of the margin of error formula?

3. Emily wants to calculate the average cost of a new laptop computer. She takes a random sample of 35 computers on various websites and find a sample mean of $375 with a standard deviation of $67. She would like to work with 95% confidence.

Which number in the word problem represents thesample size? "numerical value"

4. Emily wants to calculate the average cost of a new laptop computer. She takes a random sample of 35 computers on various websites and find a sample mean of $375 with a standard deviation of $67. She would like to work with 95% confidence.

Which number in the word problem represents thepoint estimatethat Emily will use in constructing her confidence interval? "Enter the numerical value"

5. Emily wants to calculate the average cost of a new laptop computer. She takes a random sample of 35 computers on various websites and find a sample mean of $375 with a standard deviation of $67. She would like to work with 95% confidence.

Calculate the margin of error for this problem. Round your final answer to the nearest whole dollar (for example: $15.22 would round to $15)

6. Emily wants to calculate the average cost of a new laptop computer. She takes a random sample of 35 computers on various websites and find a sample mean of $375 with a standard deviation of $67. She would like to work with 95% confidence.

write a full conclusion sentence for this problem (putting together your point estimate and margin of error to create the confidence interval).

7. Sam wants to estimate how many students prefer Chick-Fil-A as their favorite fast-food restaurant. Based on a sample of 212 students, 145 identify Chick-Fil-A as their favorite fast food restaurant.

If Sam wants to work with 90% confidence, find hismargin of error.

Round to one decimal place

8. Sam wants to estimate how many students prefer Chick-Fil-A as their favorite fast-food restaurant. Based on a sample of 212 students, 145 identify Chick-Fil-A as their favorite fast food restaurant.

Put together your point estimate and margin of error to create the confidence interval, using 90% confidence. full conclusion sentence.

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