I need help with this question In one month, the national mean price pergallon (in dollars) of gasoline was 3.107. Thedata table here represents a random sample of20 gas stations in city A. Is gas in city A more3.033.093.083.083.133.133.113.15expensive than the nation? Assume the datacome from a normal population with nooutliers. Complete parts (a) through (d) below.3.163.183.173.183.193.213.213.243.223.223.223.28(a) What type of test should be used?A hypothesis test regarding the difference of two means using a matched-pairs designA hypothesis test regarding two population standard deviationsA hypothesis test regarding a single population mean using Student's approximatetA hypothesis test regarding the difference between two population proportions from independent samples using the standard normal test statistic(b) Determine the null and alternative hypotheses.HoH4:(Type integers or decimals.)Click to select your answer(s). Question HelpIn one month, the national mean price pergallon (in dollars) of gasoline was 3.107. Thedata table here represents a random sample of20 gas stations in city A. Is gas in city A more3.033.093.083.083.133.133.113.15expensive than the nation? Assume the datacome from a normal population with nooutliers. Complete parts (a) through (d) below.3.163.183.173.183.193.213.213.243.223.223.223.28(c) Use technology to calculate the P-value.| (Round to three decimal places as needed.)(d) Draw a conclusion based on the hypothesis test. Choose the correct answer below.O A. No meaningful conclusion can be drawn because no level of significance was stated.O B. Although no level of significance is stated, the P-value is large enough that the null hypothesis cannot be rejected. There is insufficient evidence to conclude that the gas prices in city A are higher thanthe national average.O c. Although no level of significance is stated, the P-value is so small that the null hypothesis can be rejected. There is sufficient evidence to conclude that the gas prices in city A are lower than thenational average.O D. Although no level of significance is stated, the P-value is so small that the null hypothesis can be rejected. There is sufficient evidence to conclude that the gas prices in city A are higher than thenational average.Click to select your answer(s).

Name: I need help with this question In one month, the national mean price p
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Description: I need help with this question In one month, the national mean price pergallon (in dollars) of gasoline was 3.107. Thedata table here represents a random sample of20 gas stations in city A. Is gas in city A more3.033.093.083.083.133.133.113.15expensi

Solution: n= 20 Sample size μ= 3.107 Population mean ∑x=63.28x=∑xn=63.2820=3.164 Sample mean…

Math

Statistics

In one month, the national mean price per gallon (in dollars) of gasoline was 3.107. The data table here represents a random sample of 20 gas stations in city A. Is gas in city A more expensive than the nation? Assume the data come from a normal population with no outliers. Complete parts (a) through (d) below. 3.03 3.09 3.08 3.08 3.13 3.13 3.11 3.15 3.16 3.18 3.17 3.18 3.19 3.21 3.21 3.24 3.22 3.22 3.22 3.28 a) What type of test should be used? O A hypothesis test regarding the difference of two means using a matched-pairs design O A hypothesis test regarding two population standard deviations OA hypothesis test regarding single population mean using Student's approximate t A hypothesis test regarding the difference between two population proportions from independent samples using the standard normal test statistic b) Determine the null and alternative hypotheses.

In one month, the national mean price per gallon (in dollars) of gasoline was 3.107. The data table here represents a random sample of 20 gas stations in city A. Is gas in city A more expensive than the nation? Assume the data come from a normal population with no outliers. Complete parts (a) through (d) below. 3.03 3.09 3.08 3.08 3.13 3.13 3.11 3.15 3.16 3.18 3.17 3.18 3.19 3.21 3.21 3.24 3.22 3.22 3.22 3.28 a) What type of test should be used? O A hypothesis test regarding the difference of two means using a matched-pairs design O A hypothesis test regarding two population standard deviations OA hypothesis test regarding single population mean using Student's approximate t A hypothesis test regarding the difference between two population proportions from independent samples using the standard normal test statistic b) Determine the null and alternative hypotheses.

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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Concept explainers

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.

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Question

I need help with this question

In one month, the national mean price per
gallon (in dollars) of gasoline was 3.107. The
data table here represents a random sample of
20 gas stations in city A. Is gas in city A more
3.03
3.09
3.08
3.08
3.13
3.13
3.11
3.15
expensive than the nation? Assume the data
come from a normal population with no
outliers. Complete parts (a) through (d) below.
3.16
3.18
3.17
3.18
3.19
3.21
3.21
3.24
3.22
3.22
3.22
3.28
(a) What type of test should be used?
A hypothesis test regarding the difference of two means using a matched-pairs design
A hypothesis test regarding two population standard deviations
A hypothesis test regarding a single population mean using Student's approximatet
A hypothesis test regarding the difference between two population proportions from independent samples using the standard normal test statistic
(b) Determine the null and alternative hypotheses.
Ho
H4:
(Type integers or decimals.)
Click to select your answer(s).

Question Help
In one month, the national mean price per
gallon (in dollars) of gasoline was 3.107. The
data table here represents a random sample of
20 gas stations in city A. Is gas in city A more
3.03
3.09
3.08
3.08
3.13
3.13
3.11
3.15
expensive than the nation? Assume the data
come from a normal population with no
outliers. Complete parts (a) through (d) below.
3.16
3.18
3.17
3.18
3.19
3.21
3.21
3.24
3.22
3.22
3.22
3.28
(c) Use technology to calculate the P-value.
| (Round to three decimal places as needed.)
(d) Draw a conclusion based on the hypothesis test. Choose the correct answer below.
O A. No meaningful conclusion can be drawn because no level of significance was stated.
O B. Although no level of significance is stated, the P-value is large enough that the null hypothesis cannot be rejected. There is insufficient evidence to conclude that the gas prices in city A are higher than
the national average.
O c. Although no level of significance is stated, the P-value is so small that the null hypothesis can be rejected. There is sufficient evidence to conclude that the gas prices in city A are lower than the
national average.
O D. Although no level of significance is stated, the P-value is so small that the null hypothesis can be rejected. There is sufficient evidence to conclude that the gas prices in city A are higher than the
national average.
Click to select your answer(s).

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