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2. Collette is self-employed, selling items at Home Interior parties. She wants to estimate the average amount a client spends at each party. A random sample of 35 clients' receipts gave a sample mean of $34.70 and historically we know the population standard deviation of spending at these parties to be $4.85. a. Explain why you may assume your data is normally distributed. b. Find a 90% confidence interval for the average amount expected to be spent by a given client at a party. c. Write a brief explanation of the meaning of the confidence interval in the context of this problem

2. Collette is self-employed, selling items at Home Interior parties. She wants to estimate the average amount a client spends at each party. A random sample of 35 clients' receipts gave a sample mean of $34.70 and historically we know the population standard deviation of spending at these parties to be $4.85. a. Explain why you may assume your data is normally distributed. b. Find a 90% confidence interval for the average amount expected to be spent by a given client at a party. c. Write a brief explanation of the meaning of the confidence interval in the context of this problem

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 6SGR
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TextEdit File Edit Format View Window Help E Confidence Intervals Assignment (2).rtf v 1v Helvetica C Regular E 12 v BIV ED 1.0 :E 2. Collette is self-employed, selling items at Home Interior parties. She wants to estimate the average amount a client spends at each party. A random sample of 35 clients' receipts gave a sample mean of $34.70 and historically we know the population standard deviation of spending at these parties to be $4.85. a. Explain why you may assume your data is normally distributed. b. Find a 90% confidence interval for the average amount expected to be spent by a given client at a party. c. Write a brief explanation of the meaning of the confidence interval in the context of this problem d. For a party with 35 clients, use part (b) to estimate a range of dollar values for Collette's total sales at that party. Vou ara conducting a curvey ofthe total eradit houre etudents take each semaster otSurry WE N 25 MacBook Air esc 30 F3 888 F4 FS %23 %24 4. & 3. 8. W R. tab Y.
Transcribed Image Text:TextEdit File Edit Format View Window Help E Confidence Intervals Assignment (2).rtf v 1v Helvetica C Regular E 12 v BIV ED 1.0 :E 2. Collette is self-employed, selling items at Home Interior parties. She wants to estimate the average amount a client spends at each party. A random sample of 35 clients' receipts gave a sample mean of $34.70 and historically we know the population standard deviation of spending at these parties to be $4.85. a. Explain why you may assume your data is normally distributed. b. Find a 90% confidence interval for the average amount expected to be spent by a given client at a party. c. Write a brief explanation of the meaning of the confidence interval in the context of this problem d. For a party with 35 clients, use part (b) to estimate a range of dollar values for Collette's total sales at that party. Vou ara conducting a curvey ofthe total eradit houre etudents take each semaster otSurry WE N 25 MacBook Air esc 30 F3 888 F4 FS %23 %24 4. & 3. 8. W R. tab Y.
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