9. Properties of a čônfidenčé intérvalSuppose the mean of a population is u = 36. A researcher (who does not know that µ = 36) selects a random sample of size n from this population.Then he constructs a 90% confidence interval of the population mean.The true population mean and the researcher's 90% confidence interval of the population mean are shown in the following graph. Use the graph toanswer the questions that follow.Sample Mean90% Confidence Intervalof the Population MeanTrue Population Mean3435363738394041424344Use the grey star to mark the mean of the sample. (Be sure to place the star on the horizontal blue line segment that represents the confidenceinterval.)To construct the confidence interval, the quantity tsM is subtracted from and added to the sample mean.In this case, tsM =Suppose that the researcher uses the same sample but decides to construct a 80% confidence interval of the mean of the population.Compared with the center of the 90% confidence interval, the center of the 80% confidence intervalCompared to the 90%confidence interval, the 80% confidence intervalAt the same confidence level,in the sample size would have a similar effect on the width of the confidence interval as changing theconfidence level from 90% to 80% .

From the given graph Lower Confidence level=38 Upper Confidence level=43 a) Mean: Mean=Upper…

Answered: Suppose the mean of a population is u =…

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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Use the following data to answer the questions posed below. This is data taken from a simple random sample of students a class from a large population. The variables are defined as follows: Student: Student ID. Credits: # of credits earned GPA: Current College GPA Student’s Gender: Male/Female Program: Program of study Final Exam: Students’ scores on final exam SATM: Students’ SAT math scores The data are as follows student credits gpa gender program Final Exam SATM 1 42 3.00 female Business 42.5 410 2 42 3.49 male Business 77.5 440 3 45 3.72 female Business 75.0 390 4 45 3.39 male Business 70.0 550 5 100 3.39 male Arts & Sciences 92.5 560 6 43 3.36 male Arts & Sciences 72.5 600 7 69 2.83 female Business 75.0 460 8 28 2.86 male Arts & Sciences 77.5 520 9 25 3.68 male Arts & Sciences 82.5 600 10 42 1.68 female Business 52.5 540 11 45 2.89 female Business 65.0 440 12 42 3.15 male Business 45.0 550 13 69 3.18…
This my third time posting the same question. Because no one answer it straight to me. I already answered the question. Could you please tell me which one of these are not correct. and if so Could you please tell me the correct answer first then explain it. Also could you please highlight the correct answer for each one
Which statistical analysis is needed to address this research question: H2: Men and women will differ in how rewarding they find their relationships. One sample t-test Two sample t-test ANOVA Paired sample t-test
Conduct a hypothesis for whether consumption and income are linearly related using ? =0.01. The standard error of the slope is 0.144. Slope = 0.75, Intercept = 0, sample:Income 9, 11, 5, 8, 2, 9, 12Consumption 7, 7, 2, 7, 2, 8, 9 Step 1: State the null and alternative hypotheses.Step 2: Choose the significance level.Step 3: Calculate the test statistic.Step 4: Find the critical value(s).Step 5: Compare the test statistic to the critical value(s).Step 6: State the conclusion.
Construct a boxplot for the given data. Include values of the 5-number summary in all boxplots. The test scores of 40 students are listed on the right. 5-number summary: (Q1 = P25 Q2 = P50 Q3 = P75) 1 Minimum = 2 Q1 = 3 Q2 = 4 Q3 = 5 Maximum = 25 35 43 44 47 48 54 55 56 57 59 62 63 65 66 68 69 69 71 72 72 73 74 76 77 77 78 79 80 81 81 82 83 85 89 92 93 94 97 98 Box Plot: (number line counting by five starting at 25 ending at 100)
Which of the following individuals is likely to be excluded from a clinical trial? An individual with other diseases besides the disease of interest. An individual whose data is considered to be an outlier. An individual of who is considered to be a minority. An individual who will have difficulty complying trial protocols. bartleby expert answers x2 is D (an individual who will have difficulty complying trial protocols); however, other online resources are consistently indicating A is actually the correct answer (an individual with other diseases besides the disease of interest)...which is the correct answer and why? thanks
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A new vaccination is being used in a laboratory-experiment to investigate whether it is effective. There are 258 subjects in the study. Is there sufficient evidence to determine if vaccination and disease status are related? Vaccination Status Diseased Not Diseased Total Vaccinated 55 62 117 Not Vaccinated 70 71 141 Total 125 133 258 Copy Data Step 6 of 8: Find the critical value of the test at the 0.025 level of significance. Round your answer to three decimal places.
each item # 7-8. 7. Researchers study the effect of political commercials and the likelihood of people inspired to vote for former President Trump in the 2024 presidential election. They show a political commercial to a random sample 150 people. The researchers found a 90% confidence interval for the proportion of people who were influenced to vote for former President Trump after viewing the political commercial to be (0.56, 0.72). Which is true based on the given confidence interval? Select the two correct answers. e. a. We are 90% confident that the true proportion of people inspired to vote for former President Trump after viewing a political commercial is between 0.56 and 0.72. b. 90% of all 90% confidence intervals constructed in this way will capture the true proportion of people inspired to vote for former President Trump after viewing a political commercial. c. We're 90% sure that the proportion of people in this research sample inspired to vote for Sve former President Trump…
Mr Alsup asked the studentS in his third-and sixth-period English classes whether they had chosen a topic for thier writing assignment. he recorded the data in a two-way table, as shown below English class Yes No Total Third period 24 6 30 Sixth period 22 3 25 Total 46 9 55 if jannette in in mr alsup sixth-period english class what is the probablity that she has not chosen a topic for her writing assignment? a- 3% b- 5% c- 12% d-14%
Please answer these two short questions.
Q3, just parts d, e, f. (posted a, b, c as a different question)

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