Your answer should include:a) a statement of the hypothesesb) the critical value for the testc) the value of the test statisticd) a statement of conclusion In independent random samples, 262 out of 400 employed people were registered to vote, while224 out of 450 unemployed people were registered to vote. At the 5% significance level, can wesay that the percentage of employed workers who are registered to vote exceeds the percentage ofunemployed workers who are registered? Let P1 denote the population proportion of employedpeople who are registered, and let p2 denote the population proportion of unemployed who areregistered. Formulate and carry out the appropriate z-test.Your answer should include parts a), b), c), and d) as in Question #1.

Answered: Image /qna-images/answer/d556b1a6-3818-4acc-84ab-fa486ed1bfa3.jpg

Answered: Your answer should include: a) 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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There are 3 parts to this question The value of the standard score is (round to two decimal places as needed) The critical value(s) is/are (use a comma to separate the answers as needed. Round to two decimal places as needed.) Determine whether the alternative hypothesis is supported at a 0.01 significance level.
I. Identify the claim in symbolic form, hypotheses in symbolic form, appropriate analysis, and the tail of the distribution for thefollowing situation. For the appropriate analysis, choose among the following choices:• t-Test for one population mean• z-Test for one population mean• t-Test for two dependent population means • z-Test for two independent population means• t-Test for two independent population mean For the tail of the distribution, choose among the following choices:• two-tailed• left-tailed• right-tailed 4. The effectiveness of the Weight Watchers diet is tested in an experiment, and for each subject, the weight before the dietand the weight after the diet are recorded.a. Claim: ___________b. Ho: _________________________Ha: _________________________c. Analysis: _________________________d. Tail of the distribution: _________________________
1.) Create a set of hypotheses for a test.
Mean=3.003 SD =0.058 Num samples=100 2.80 2.90 3 3.10 Sample means A certain fast-food location claims that the average (mean) wait time in the drive-thru lane is 3 minutes. One customer thinks that the average wait time is actually longer than that, and so the customer takes a random sample of drive-thru lane wait times. The customer observes 72 transactions, and the average (mean) wait time for these 72 transactions is 3.6 minutes. In order to conduct a statistical analysis, an applet was used to see if the candidate's claim is plausible. Use the distribution of 100 simulated statistics generated by the applet (pictured above) to answer the questions. a) There are 100 little squares in the simulated distribution. What does each little square represent? O The average wait time of a sample of 72 drive thru transactions if we assume that the average wait time for all transactions is atually 3 minutes. The average wait time of a sample of 100 drive thru transactions if we assume that the…
The options for the last part of the question are: Reject OR do not reject; is OR is not; appears OR does not appear; Thanks!
Answer for all the parts for the question in the picture B) What is the test statistic? (2 decimal places) C) The P-value is? (round to 3 decimal places) D) What is the correct conclusion for the hypothesis test?
A dentist wondered if his appointments were distributed evenly from Monday to Friday each week. He took a random sample of 500 appointments and recorded which day of the week they were booked for. His results are: Day Appointment Frequency Monday Search 104 Chi Square Distribution Table MA Tuesday 118 Wednesday 119 Thursday 2 The dentist would like to use these results to conduct a x² goodness-of-fit test to determine if the distribution of appointments agrees with an even distribution using a 0.5% level of significance. SUBMIT QUESTION 94 Friday SAVE PROGRESS 65 SUBMIT
Identify the null and alternative hypothesis(in symbolic and sentence form), test statistic, P-value(or critical values), conclusion about the null hypothesis, and final conclusion that addresses the original claim(Don’t just say Reject the null hypothesis or fail to reject the null hypothesis). If you used the calculator, identify everything mentioned above in addition to which calculator functions and inputs for each field were used. In a clinical study of an allergy drug, 108 of the 202 subjects reported experiencing significant relief from their symptoms. At the 0.01 significance level, test the claim that more than half of all those using the drug experience relief.
a) Clearly label and state the appropriate null and alternative hypotheses.b) State your evidence-based conclusion in a well written contextual sentence for a general audience– be sure your conclusion is not about rejecting or not rejecting hypotheses as a general audience2. A newspaper report states that the mean age of commercial jets in the United States is 14 years.An executive of AirJet, a large airline company, claims that the mean age of the planes in his company is lower. He selects a sample of 36 planes and find the mean age to be 11.8 years.Assuming his planes is the same as the national average the chance of this outcome is 0.005.
New road signs are made with the intention of improving visibility for drivers. Highway safety engineer’s setup a test course that included both the old and new signs. Volunteers drove the course and rated the old and new signs in terms of visibility. a) Write the null and alternative hypotheses in words using “improved visibility” and “not improved visibility”.b) Describe a Type I error in the context of the problem.c) Describe a Type II error in the context of the problem.
Last Spring, a couple of my Oxbow students, Izzy and Hannah, studied the how long it took customers at Hannafords to get through a self-checkout line compared to waiting through the Quick Checkout (12 items or less) register. Hannafords' management claims the mean wait time for the self-checkout is less than the established mean wait time of 4.7 minutes using the Quick Checkout line. They allowed the sisters to do some data collection, perform a statistical analysis on their results and report back to them about what they found. Management is interested in increasing the number of self-checkout registers if there is evidence that the registers decrease customers wait times. They will not need as many people working register and save in payroll costs. Hannah and Izzy collected data during three 5pm - 5:30pm times on random days. The results from 40 customers had a mean wait time of 4.4 minutes with a standard deviation of 0.6 minute. Keep this information for use in the next problem.…

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Your answer should include: a) a statement of the hypotheses b) the critical value for the test c) the value of the test statistic d) a statement of conclusion