Provide an appropriate response.19) A statistical software package was used to generate the following printout for estimating the cost ofpickup truck in the USA.X sale_price%3DSAMPLE MEAN OF X =46,600SAMPLE STANDARD DEV =13,747SAMPLE SIZE OF X =15%3DCONFIDENCE =95UPPER LIMIT = 54,213.60SAMPLE MEAN OF X = 46,600%3D%3DLOWER LIMIT = 38,986.40%3DWhat assumptions are necessary for any inferences derived from this printout to be valid?A simple random sample of size n < 30 has been obtained. From the boxplot, judge whether at-interval should be constructed. Explain your answer.20)

Answered: Image /qna-images/answer/c1f21497-168c-41f4-916a-79f99fc77a20.jpg

Answered: Provide an appropriate response. 19) A…

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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Obtain the summary statistics for LWT graph and AGE graph. Construct a 95% confidence interval estimate for moms mean age.
Explain whether the Empirical Rule can be used to describe the chosen data sets in Part 3a. Justify your response with a thorough explanation. Hint: Do either have outliers and/or extreme skewness? Variable1 (Female Height): Variable 2 (Female Weight): Min 54.2 75.3 Q1 60.4 118.4 Median (Q2) 62.4 170.8 Q3 65.6 212.2 Max 74.9 396.1
1) Is the test significant? A. Unable to determine B. No, p = .448 C. Yes, p = <. 001 D. Yes, p = .448 2) In order to determine where the main mean differences lie, the researcher would also need to conduct a ____? A. Correlation B. MANOVA C. post-hoc analysis D. t-test
10) please solve all parts of the question correctly.
The following contingency table records some information about a sample of visitors to Old Fort William over a long weekend in August. Local Other Canadian Non-Canadian Total Young Child 40 75 35 150 Teen 25 50 20 95 Young Adult Mid Aged Adult 140 85 125 200 465 100 195 380 Senior Adult 120 165 125 410 Total 410 685 405 1500 Given the above information and choosing a level of significance of a = 0.01; you should reject the null hypothesis that there is at least one difference in origins among age groups that is statistically significant. True False
You suspect that your east-facing portion of your Macintosh apple orchard is producing less apples than your west facing portion. You decide to conduct a study of your apple trees to determine the average production of apples per tree as measured in bushels for both sections. Conduct a hypothesis test at 5% level of significance to determine if the East facing section is producing significantly less apples per tree compared to the West facing section. Use the table below. Sample size Average amount of Standard of trees deviation Bushels West 55 28 East 50 22 12 What is the p-value? p=0.0021 0.025
The histogram shown below represent the number of visitors to the Louvre museum within 24hours, determine: 1) Mean 2) Median 3) Mode 4) Variance 5) Standard deviation Visitors to Louvre 9 Museum within 24 hours 8. 7 2 1 69.5 74.5 79.5 84.5 89.5 94.5 99.5 Boundaries Limit Frequency
Also need to find the standardized test statistic, decide whether to reject or fail to reject, and interpret the decision in the context of the claim.
Please answer
Part 1: Hypothesis Test for the Mean- Manual Tasks• Define your concern of interest drawing upon your variables in your dataset.• Conceptualize your null and alternate hypotheses based on your testing concept.a. Apply 1 one-sided test (upper-tail or lower-tail) and 1 two-sided test concepts for the mean with unknown population standard deviation (�) at 1%, 5%, or 10% levels of significance (choose one of them for each test) by stating the appropriate decision rule. b. Calculate p-value for each of your tests and perform testing for your same hypotheses with p-value solution. Comment on how p-value changes for 1%, 5%, and 10% significance levels (for all three).**Here in order to apply normal distribution approximation, it would be better if you choose your sample size greater than 100 (n>100).c. Make a confidence interval estimation for the population mean with unknown variancebased on 90%, 95% and 99% confidence levels and make interpretations for all three. Data is: Name…
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