Question 2 of 10To estimate the mean height of female high school juniors, you take arandom sample of 30 female students and get these results (in inches):72, 51, 67, 68, 61, 69, 58, 56, 60, 5666, 61, 60, 59, 59, 54, 58, 53, 68, 6357, 62, 63, 64, 56, 62, 58, 67, 57, 70If the o is 5.3, based on past research, and you want to construct a 97%confidence interval using (estimate) ± (margin of error)= (estimate) ± z*what's your value for z*?O A. 1.645В. 2.17О с. 1.96D. 2.576O E. 1.88

Answered: Question 2 of 10 To estimate the mean…

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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New 1 Re X - deso:cisd.schoolcgy.com/common assesement 2833 Mean, Median and Mode Homework What is the median? 20 0 10 4 3 0 hp
The number of accidents recorded yearly in a certain discrete for eight consecutive years are 96, 82, 80, x, 94, 82, 96 and (x+6). If the sample mean is 88, find the value of x.
The average final exam score for the statistics course is 75%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is different. The final exam scores for the 13 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 75, 70, 86, 92, 71, 82, 89, 74, 90, 64, 89, 80, 71 What can be concluded at the the a 0.05 level of significance level of signtficance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ?vSelect an answerv H1: ?vSelect an answerv C. The test statistic ?v = (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ?v a f. Based on this, we should Select an answerv the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the population mean is not significantly different from 75 at…
Classify the following scores in class-intervals 0–9, 10–19,., 40–49 and calculate the variance of the distribution : 24, 12, 37, 49, 30, 6, 28, 10, 13, 18, 12, 19, 2, 33, 4, 25, 42, 22, 16, 29, 0, 21, 23, 31, 21, 34, 20, 27, 23, 35.
American college students have an average of 4.6 credit cards per student. Is the average different for 20-year-olds who are not in college? The data for the 18 randomly selected 20-year-olds who are not in college is shown below: 3, 4, 3, 0, 6, 2, 4, 1, 5, 5, 0, 2, 3 ,4, 2, 7, 4, 0 Assuming that the distribution is normal, what can be concluded at the 0.01 level of significance? H0: = 4.6 Ha: [ Select ] [">", "<", "Not Equal To"] 4.6 Test statistic: [ Select ] ["T", "Z"] p-Value =[ Select ]["0.025", "0.015", "0.035", "0.005"] [ Select ] ["Fail to Reject Ho", "Reject Ho"] Conclusion: There is [ Select ] ["statistically significant", "insufficient"] evidence to make the conclusion that the population mean number of credit cards held by 20-year-olds who are not in college is not equal to 4.6. p-Value Interpretation: If the mean number of credit cards that 20-year-old non-college students have is equal to [ Select ] ["4.1", "3.6",…
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The average final exam score for the statistics course is 74%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is lower. The final exam scores for the 11 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 76, 78, 77, 67, 63, 79, 50, 63, 70, 63, 66 What can be concluded at the the a = 0.01 level of significance level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ?v Select an answer Hj: ? vSelect an answer v c. The test statistic ? v (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? va f. Based on this, we should Select an answer |the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the populaton mean is significantly lower than 74 at a = 0.01, so…
The average final exam score for the statistics course is 74%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is lower. The final exam scores for the 12 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 51, 86, 77, 86, 66, 59, 66, 76, 55, 59, 57, 80 What can be concluded at the α = 0.10 level of significance? For this study, we should use Select an answer t-test for a population mean z-test for a population proportion H0:H0: ? μ p Select an answer = ≠ > < H1:H1: ? p μ Select an answer = > < ≠ The test statistic ? t z = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.)
As the sample size increases, the margin of error Group of answer choices decreases increases stays the same increases or decreases depending on the size of the mean

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