A null and alternative hypothesis are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed.Ho:o = 2.7H₂:o # 2.7What type of test is being conducted in this problem?A. Two-tailed testO B. Right-tailed testO C. Left-tailed test

Null Hypothesis: H0:σ=2.7 Alternative Hypothesis: Ha:σ≠2.7

Answered: A null and alternative hypothesis are…

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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Identify the null and the alternative hypotheses (NO need to show work in "show work" box). An animal psychologist claims that more than 23 percent of the gazelle population suffers from stress due to human presence. Họ: Select an answer v H;: Select an answer v The original claim = Select an answer v
ab Statistid Amedical researcher says that less than 79% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 300 adults in that country, 75% think that healthy children should be reoquired to be vaccinated. At a=0.01, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. 直真 O D. The percentage of adults in the country who think that healthy children should be required to be vaccinated is not %. Let p be the population proportion of successes, where a success is an adult in the country who thinks that healthy children should be required to be vaccinated. State H, and H,. Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) O A. Ho p Courses O D. Ho pt O E. Ho p> F. Ho p2 0.79 Ha P= Ha ps H p< 0.79 urse Home (b) Find the critical value(s) and identify the rejection region(s). signments Identify the…
What are the two decisions that you can make from performing a hypothesis test? CO What are the two decisions that you can make from performing a hypothesis test? Select all that apply. A. fail to reject the alternative hypothesis C. reject the null hypothesis E. accept the null hypothesis G. make a type I error B. make a type Il error D. reject the alternative hypothesis F. fail to reject the null hypothesis H. accept the alternative hypothesis
State whether the standardized test statistict indicates that you should reject the null hypothesis. Explain. (a) t= 1.608 (b) t= 0 (c) t= 1.502 (d) t= - 1.643 0. 6=1594 (a) For t= 1.608, should you reject or fail to reject the null hypothesis? O A. Reject Ho, because t> 1.594. O B. Fail to reject Hn. because t> 1.594. O C. Reject Ho, because t<1.594. O D. Fail to reject Hn. because t< 1.594.
(d) Fort= -1.914, should you reject or fail to reject the null hypothesis?____
the null and alternative hypothesis are given. Determine if the test is left, right or two tailed, and the parameter that is being tested. H0: sigma =9.7 H1: sigma less than 9.7 Is it sigma or u?
State whether the standardized test statistic t indicates that you should reject the null hypothesis. Explain. (a) t= 1.566 (b) t=0 (c) t= 1.497 (d) t= - 1.571 6=1.546 (a) For t= 1.566, should you reject or fail to reject the null hypothesis? O A. Fail to reject Ho, because t 1.546. O C. Reject Ho, because t> 1.546. O D. Reject Ho, because t 1.546. O C. Reject Ho, because t>1.546. O D. Fail to reject Ho, because t<1.546. (c) For t= 1.497, should you reject or fail to reject the null hypothesis? OA Fail tn raiert H. haraiea t<1 KAR Click to select your answer. esc @ # $ * 3 4 5 6 8 * C0
You are conducting a multinomial hypothesis test (α = 0.05) for the claim that all 5 categories are equally likely to be selected. Complete the table. Category ObservedFrequency ExpectedFrequency A 10 B 16 C 8 D 20 E 14 What is the chi-square test-statistic for this data? (Report answer accurate to three decimal places.)χ2=What are the degrees of freedom for this test? d.f.= What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail to reject the null accept the alternative As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that all 5 categories are equally likely to be selected. There is not sufficient evidence to warrant rejection of the claim that all 5 categories are equally likely to be selected. The sample data…
you did not answer this Let p be the true proportion of firms with a chief marketing officer currently on their top management team. To conduct the hypothesis test, the null and alternative hypotheses are formulated as: H₀: p̄ p̄ = 0.42'; Haa: p̄ p̄ ≠ 0.42 H₀: p ≥ 0.42; Haa: p < 0.42 H₀: p = 0.42; Haa: p ≠ 0.42 H₀: p ≤ 0.42; Haa: p > 0.42 If the null hypothesis is true, the sampling distribution of the sample proportion p̄ p̄ can be approximated by a _____ with a mean ______ and a standard deviation of ____ . The test statistic is _____ .
question c i need help with
Scenario: 200 people were asked, “Who is your favorite superhero?” Below are the data. Test the null hypothesis that the population frequencies for each category are equal. α= .05. Iron Man Black Panther Wonder Woman Spiderman fo = 40 fo = 60 fo =55 fo = 45 fe = fe = fe = fe = The correct APA format for the result would include
What is the value of t testing the null hypothesis that the population mean is 0? Y -2 1 3 2 -1 0 4 6

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A null and alternative hypothesis are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. Ho: H₂: G = 2.7 o #2.7 What type of test is being conducted in this problem? O A. Two-tailed test