Solve accurate and exact. ThanksFor data of discussion 1 refer to this picture What is the best point estimate for your survey question that you used in Discussion 1? Be sure to include both the correct notation (symbol) and the value.Construct a confidence interval for the responses to your survey. Assume that you do not know the population standard deviation.Indicate your level of confidence and the corresponding critical value.What is the margin of error?If we would increase the sample size to 500 students, what would happen to your margin of error? 1. Approximately, how much money do you spend on gas per month and perhow many miles?2.0100150240010018040100200250 2756510020028075120200300851402003001001442005001001502003. Mean = 164.32; Median = 150; Mode = 100 and 2004. SD = 92.65; Variance = 8,583.26; Range = 4605. Z-score = 3.62 - This value is outliner and a significantly high value.

Given: Sample size n = 31 Formula used: Confidence interval = X ± t×sn

Answered: 200 280 200 300 200 200 300 150; Mode…

200 280 200 300 200 200 300 150; Mode 100 and 200 83.26; Range = 460 is outliner and a significantly high value. 500 200

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 8SGR

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Question

Solve accurate and exact. Thanks

For data of discussion 1 refer to this picture

What is the best point estimate for your survey question that you used in Discussion 1? Be sure to include both the correct notation (symbol) and the value.
Construct a confidence interval for the responses to your survey. Assume that you do not know the population standard deviation.
Indicate your level of confidence and the corresponding critical value.
What is the margin of error?
If we would increase the sample size to 500 students, what would happen to your margin of error?

1. Approximately, how much money do you spend on gas per month and per
how many miles?
2.
0
100
150
240
0
100
180
40
100
200
250 275
65
100
200
280
75
120
200
300
85
140
200
300
100
144
200
500
100
150
200
3. Mean = 164.32; Median = 150; Mode = 100 and 200
4. SD = 92.65; Variance = 8,583.26; Range = 460
5. Z-score = 3.62 - This value is outliner and a significantly high value.

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

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