OHOW ALL your work/steps! For the problems containing data, you must use JMP to analyze the data!. Ina random sample of 28 four-person tents, the mean price was $344.19 and the standard deviationwas $61.32. Assume the prices are normally distributed. At the 5% significance level can we con-clude that the mean price of four-person tents has increased from the previous mean price of $325?2. A hot topic of debate is whether the legal driving age should be raised to eighteen. From a randomsample of 400 Americans, 52% favored raising the legal driving age to eighteen. Based on the data,can you conclude that a majority of Americans believe the legal driving age should be raised to 18?Let a = 2.5%3. Are our kids getting taller? The average height of kindergartners in 1950 was 39.5 in. The databelow represents the height (in inches) of twenty-six randomly selected kindergartners. At the 5%significance level, what conclusion can be reached?40.139.941.241.339.239.338.738.839.240.341.140.739.839.740.940.039.041.040.639.639.540.540.840.939.241.1

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1. Ina random sample of 28 four-person tents, the mean price was $344.19 and the standard deviation was $61.32. Assume the prices are normally distributed. At the 5% significance level can we con- clude that the mean price of four-person tents has increased from the previous mean price of $325? 11he seiced to eighteen Fr

1. Ina random sample of 28 four-person tents, the mean price was $344.19 and the standard deviation was $61.32. Assume the prices are normally distributed. At the 5% significance level can we con- clude that the mean price of four-person tents has increased from the previous mean price of $325? 11he seiced to eighteen Fr

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

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

OHOW ALL your work/steps! For the problems containing data, you must use JMP to analyze the data!
. Ina random sample of 28 four-person tents, the mean price was $344.19 and the standard deviation
was $61.32. Assume the prices are normally distributed. At the 5% significance level can we con-
clude that the mean price of four-person tents has increased from the previous mean price of $325?
2. A hot topic of debate is whether the legal driving age should be raised to eighteen. From a random
sample of 400 Americans, 52% favored raising the legal driving age to eighteen. Based on the data,
can you conclude that a majority of Americans believe the legal driving age should be raised to 18?
Let a = 2.5%
3. Are our kids getting taller? The average height of kindergartners in 1950 was 39.5 in. The data
below represents the height (in inches) of twenty-six randomly selected kindergartners. At the 5%
significance level, what conclusion can be reached?
40.1
39.9
41.2
41.3
39.2
39.3
38.7
38.8
39.2
40.3
41.1
40.7
39.8
39.7
40.9
40.0
39.0
41.0
40.6
39.6
39.5
40.5
40.8
40.9
39.2
41.1

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Is a measure of 29 inches "far away" from a mean of 19 inches? Suppose the data come from a sample whose standard deviation is 2 inches. A. How many standard deviation is 29 inches from 19 inches? b. Is 29 inches far away from a mean of 19 inches? c. Suppose the standard deviation of the underlying data is 7 inches. Is 29 inches far away from a mean of 19 inches?
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. Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout. Suppose a friend tells you that the average length of trout caught in Pyramid Lake is ? = 19 inches. However, the Creel Survey reported that of a random sample of 49 fish caught, themean length was ?̅= 18.5 inches, with estimated standard deviation ? = 3.2 inches. Do these data indicate that the average length of a trout caught in Pyramid Lake is less than ? = 19 inches? Use ? = 0.05.a. Do we use a Normal or a Student’s t- distribution? Explain. How many degrees of freedom do we use?b. What are the hypotheses?
Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout. Suppose a friend tells you that the average length of trout caught in Pyramid Lake is ? = 19 inches. However, a survey reported that of a random sample of 46 fish caught, the mean length was x = 18.4 inches, with estimated standard deviation s = 2.7 inches. Do these data indicate that the average length of a trout caught in Pyramid Lake is less than ? = 19 inches? Use ? = 0.05. Solve the problem using the critical region method of testing (i.e., traditional method). (Round the your answers to three decimal places.) test statistic = critical value = State your conclusion in the context of the application. Reject the null hypothesis, there is sufficient evidence that the average fish length is less than 19 inches.Reject the null hypothesis, there is insufficient evidence that the average fish length is less than 19 inches. Fail to reject the null hypothesis, there is…
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