ECO250_Unit8_. A Ayannia Tripp Layout References Mailings Review View Help PFind Replac A Select -14 A A Aa- A E-E-E-EE 21T AaBbCcD AaBbCcD AaBbC AABBCCC AaB ab x, x A- A-EE E= E- 2-- 1 Normal 1 No Spac. Heading 1 Heading 2 Title Font Paragraph Styles Editing Unit 8 In-Class Exercise You are opening your own wedding planning business and are conducting some market research. According to The Knot Real Weddings Study, the average cost of a wedding in the U.S. is $35,000. You are skeptical about whether these numbers apply to the Piedmont Triad area-your target market-and so you decide to conduct your own survey. After randomly sampling 40 recently married couples, you find an average cost of $32,000 with a standard deviation of $10,000. 1. Find the 90% confidence interval for the mean wedding cost in the Piedmont Triad. a. What is the point estimate of the mean wedding cost for the Piedmont Triad? b. Find the standard error of the mean. c. Find the critical value. (You'll need to decide whether to use a z-score or a t-score.) d. Put it together to find the confidence interval.

ECO250_Unit8_. A Ayannia Tripp Layout References Mailings Review View Help PFind Replac A Select -14 A A Aa- A E-E-E-EE 21T AaBbCcD AaBbCcD AaBbC AABBCCC AaB ab x, x A- A-EE E= E- 2-- 1 Normal 1 No Spac. Heading 1 Heading 2 Title Font Paragraph Styles Editing Unit 8 In-Class Exercise You are opening your own wedding planning business and are conducting some market research. According to The Knot Real Weddings Study, the average cost of a wedding in the U.S. is $35,000. You are skeptical about whether these numbers apply to the Piedmont Triad area-your target market-and so you decide to conduct your own survey. After randomly sampling 40 recently married couples, you find an average cost of $32,000 with a standard deviation of $10,000. 1. Find the 90% confidence interval for the mean wedding cost in the Piedmont Triad. a. What is the point estimate of the mean wedding cost for the Piedmont Triad? b. Find the standard error of the mean. c. Find the critical value. (You'll need to decide whether to use a z-score or a t-score.) d. Put it together to find the confidence interval.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

ECO250_Unit8_.
A Ayannia Tripp
Layout
References
Mailings
Review
View
Help
P Find
Replac
A Select
14 A A Aa- A E-E-E-E E AL T
AABBCCD AaBbCcD AaBbC AABBCCC AaB
ab x, x A- .A E=EE E- - H-
1 Normal T No Spac. Heading 1
Heading 2
Title
Font
Paragraph
Styles
Editing
Unit 8 In-Class Exercise
You are opening your own wedding planning business and are conducting some market
research. According to The Knot Real Weddings Study, the average cost of a wedding in the U.S.
is $35,000.
You are skeptical about whether these numbers apply to the Piedmont Triad area-your target
market-and so you decide to conduct your own survey. After randomly sampling 40 recently
married couples, you find an average cost of $32,000 with a standard deviation of $10,000.
1. Find the 90% confidence interval for the mean wedding cost in the Piedmont Triad.
a. What is the point estimate of the mean wedding cost for the Piedmont Triad?
b. Find the standard error of the mean.
C. Find the critical value. (You'll need to decide whether to use a z-score or a t-score.)
d. Put it together to find the confidence interval.
D Focus
W

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