6) Decide whether the null hypothesis should be rejected when a = 0.05 and the P-value = 0.045. 6) Decide whether the null hypothesis should be rejected when a = 0.05 and the P-value = 0.045.ziuaidoyed to slee laurine serve ori betele noitsipozzA IsaibaM asoirsmA od vd noqono (Stoiminimba latigeon to quota A creacz to noitsivob brünete noitalugoga diw 151,0818 eiven of belome vimobus

Answered: Image /qna-images/answer/b12ae00f-55ff-4fae-831f-9ec7cf6fe9fc.jpg

Answered: 6) Decide whether the null hypothesis…

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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7.On average, what value is expected for the t statistic when the null hypothesis is true? а. О с. 1.96 b. 1 d. t>1.96
Suppose a consumer group suspects that the proportion of households that have three cell phones is 30%. A cell phone company has reason to believe that the proportion is not 30%. Before they start a big advertising campaign, they conduct a hypothesis test. Their marketing people survey 150 households with the result that 43 of the households have three cell phones. State the two tailed hypothesis test, calculate the p-value for the test and test whether you can reject H0 using α= 0.05.
If I calculate a z test statistic of 4.84, and my α=0.05, what decision should I make about the hypothesis? (Calculate the p-value for a 2-sided test to make your decision.)
You collect N = 200 frogs from a pond and find that 120 of them are female. You wish to conduct the following hypothesis test (α = 0.05) for p (the proportion of female frogs in the pond): H0 : p = 0.55 HA : p > 0.55 Determine which of the following statements are true. Assume the true p = 0.65. I. The one-sided p-value is 0.1528. II. You reject the null hypothesis H0. III. You fail to reject H0 and make a Type II error. Group of answer choices I and III only III only I only None of the Above II only
Suppose that a researcher decides that he MUST obtain a Type 1 error level of no more than 0.01 in order to reject the null hypothesis. After analyzing his data he finds that the results are significant at p = 0.05 but not at p = 0.01. If he is not able to change the maximum allowed Type 1 error level, then the researcher should Question 5 options: retain the null hypothesis because 0.05 is greater than 0.01. retain the null hypothesis because 0.05 is merely sampling error. reject the null hypothesis because 0.05 is close to 0.01. reject the null hypothesis because 0.05 is greater than 0.01.
١٣.Value of test statistic Chi square is 6.435 and critical value of Chi square from the table is 6.345; thus we will reject the null hypothesis (H0). Select one: True False
11.20 Refer to Exercise 11.18. Conduct a test of the null hypothesis that b1= 0. Use a =0.05.
You collect N = 200 frogs from a pond and find that 120 of them are female. You wish to conduct the following hypothesis test (α = 0.05) for p (the proportion of female frogs in the pond): H0 : p = 0.55 HA : p > 0.55 Determine which of the following statements are true. Assume the true p = 0.65. I. The one-sided p-value is 0.1528. II. You reject the null hypothesis H0. III. You fail to reject H0 and make a Type II error. Group of answer choices None of the Above III only I and III only II only I only
Find the P-value for a left-tailed hypothesis test with a test statistic of Z=−1.65. Decide whether to reject H0 if the level of significance is α=0.05 P-value= (Round to four decimal places as needed.)
3. Below are a set of null hypothesis and alternative hypothesis with all the required data to calculate the t-score. Calculate the t-score and identify if the null hypothesis was rejected.. A. Ho = 0 H₁ #0 -420 (SE)=100 n = 6 Where x is the average amount of mosquito bites a person revives in the year. B. Ho≥ 18 H<18 X=6 (SE)=9 n=12 Where is the average weight of a three year old cat. C. Ho=0 H₁ #0-00006 (SE)=00000002 n = 4000 Where is the average reduction in height of a 30 year old due to old age.
19% of all college students volunteer their time. Is the percentage of college students who are volunteers smaller for students receiving financial aid? Of the 338 randomly selected students who receive financial aid, 44 of them volunteered their time. What can be concluded at the α = 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: (please enter a decimal) Please enter a decimal) c. The test statistic (please show your answer to 3 decimal places.) 2 (Please show your answer to 4 decimal places.) d. The p-value e. The p-value is? a f Based on this, we should Select an answer g. Thus, the final conclusion is that the null hypothesis. The data suggest the population proportion is not significantly lower than 19% at α-0.05, so there is insufficient evidence to conclude that the percentage of financial aid recipients who volunteer is lower than 1996. The data suggest the population proportion is not significantly…
A tax accountant would like to test the claim that the proportion of individuals who owe when filing their taxes is greater than 0.20. If the z− test statistic was calculated as z=1.94, does the tax accountant have enough evidence to reject the null hypothesis? Assume α=0.05.

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