Given the values in Part 1. Check if the sample data truly represents the population data at 5% level ofsignificance using hypothesis testing in one variable.a. Construct the null and alternative hypothesisb. Use the MS Excel Data Analysis toolpak to compute the p-valueWeight:74,58,59,35,69,48,76,60,57Class Data Measurement#1Weight:68,43,42,55,4043,60,52,48,74,58,59,35,69,48,76,60,57,56,41,55,39,84,64,54,53,51,68,69,69,69,66,55,40,52Population mean(weight): 56.342857Population Variance(weight): 139.42531Population Standard Deviation(weight): 11.807849Guide Question:1. Using the given and computed values, is there a reason to believe that there is no significantdifference between sample data and population data? Justify.2. What if the significance level is raised to 10%, will there be a change on the original conclusion?Justify.

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Answered: Given the values in Part 1. Check if…

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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www.census.gov/newsroom/press-releases/ For each sample size in the table, give the mean and SE of the sampling distribution of p. a. sample size, n standard error, SE mean 10 100 1000 b. What happens to the mean as the sample size increases? What happens to the SE as the sample size increases? c. Complete this summary sentence: If you take a random sample of 100 people from the L.A. metro area, the expected proportion who speak a language other than English at home is give or take
4 Ms. Lisa Monnin is the budget director for Nexus Media Inc. She would like to compare the daily travel expenses for the sales staff and the audit staff. She collected the following sample information. Sales ($) Audit ($) 125 137 147 162 136 142 128 107 130 141 141 108 140 At the 0.01 significance level, can she conclude that the mean daily expenses are greater for the sales staff than the audit staff? Click here for the Excel Data File 1. State the decision rule. (Round your answer to 3 decimal places.) Reject Ho if t> 2. Compute the pooled estimate of the population variance. (Round your answer to 2 decimal places.) Pooled variance 3. Compute the test statistic. (Round your answer to 3 decimal places.) Value of the test statistic 4. State your decision about the null hypothesis. (Click to select) Ho: H₂ Ha 5. Estimate the p-value. (Round your answers to 3 decimal places.) p-value (Click to select) Sales 125 137 147 162 136 142 Audit 128 107 130 141 141 108 140
Why is a cohort design more efficient than a case-control design to study a rare exposure? (Select one best answer) Group of answer choices a. Subjects are selected based on their exposure status. b. Subjects are selected based on their disease status. c. Subjects are selected based on their exposure and disease status. d. Subjects are selected based on their random allocation to treatment or placebo. e. None of these.
a) How will you decide the sample size? Discuss with reasons b) Find out the dependent variable and independent variables c) Who are the respondents?
Every year during home football games the Carroll College fans do push-up contests to see how many they can do. Suppose that a curious stats student in the stands kept track of the number of push-ups completed for several students of both genders. Males 31 31 24 18 30 16 28 13 26 23 Females 16 11 10 1 26 26 6 9 16 32 Consider the hypothesis that males in this contest can do more pushups than females. Use an significance level to test the claim. The test statistic is Construct a 99% confidence interval for the mean of the differences between males and females.
A random sample of employees participating in a company fitness program were asked how many days they logged an exercise activity in the past month. Their responses are reported in the histogram below.Based on the histogram above, what is the class width? Clas width = ? Days What is the sample size? Sample size = ? employees
Explain in detail RANDOM ASSIGNMENT OF SUBJECTS.
webassign.net/web/Student/Assignment-Responses/submit?pos=10&dep=22704121&tags=autos A newspaper infographic titled "Social Media Jeopardizing Your Job?" summarized data from a survey of 1,825 recruiters and human resource professionals. The infographic indicated that 53% of the people surveyed had reconsidered a job candidate based on his or her social media profile. Assume that the sample is representative of the population of recruiters and human resource professionals in the United States. (a) Use the given information to estimate the proportion of recruiters and human resource professionals who have reconsidered a job candidate based on his or her social media profile using a 95% confidence interval. (Use a table or technology. Round your answers to three decimal places.) Give an interpretation of the interval in context. There is a 95% chance that the true proportion of recruiters and human resource professionals who have reconsidered a job candidate based on his or her social…
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To decide between using an independent-samples t test and a paired-samples t test, what question should the researcher ask? a. Is the goal to measure association or to make a prediction? b. Are there more than two levels of the independent variable? c. Is the population mean known? d. Is the research design between-groups or within-groups
a. Identify the two different cases considered in discussing the sampling distribution of the mean sample.
a. Report the two sample means, and state which group had the higher sample mean systolic blood pressure. Refer to the technology output in accompanying figure (A). b. Refer to the technology output given in figure (A) to test the hypothesis that the mean systolic blood pressures for men and women are not equal, using a significance level of 0.05. Although the distribution of blood pressures in the population are right-skewed, the sample size is large enough to use t-tests. Choose from figures (B), (C), and (D) for your t- and p-values. Click the icon to view the technology outputs. a. The sample mean for the women was (Type an integer or a decimal. Do not round,) The sample mean for the men was (Type an integer or a decimal. Do not round.) Determine which group had the higher sample mean systolic blood pressure. The had the higher sample mean systolic blood pressure. b. Determine the hypotheses for this test. Let uy, be the population mean systolic blood pressure for women, and let Hm…

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