Activity 1.1 Null Vs AlternativeDirections: State the null and the alternative hypotheses of the followingstatements.1. A medical trial is conducted to test whether or not a new medicinereduces uric acid by 50%.Ho:Ha:2. We want to test whether the general average of students in Math isdifferent from 80%.Ho:Ha:3. We want to test whether the mean height of Grade 8 students is 58inches.Ho:Ha:4. We want to test if LPIHS students take more than four years to graduatefrom high school, on the average.Ho:Ha:5. We want to test if it takes less than 60 minutes to answer the quarterlytest in Calculus.Ho:Ha:6. A medical test is conducted to determine whether or not a new vaccinereduces the complications of dengue fever.Ho:Ha:7. The enrolment in high school this school year increases by 10%.Ho:Ha:8. The intelligence quotient of male grade 11 students is the same as thefemale students.Ho:Ha:9. The school want to test if the students in Grade 7 prefer online distancelearning as the method of instruction.Ho:Ha:10. The school librarian wants to find out if there was an increase in thenumber of students accessing the school library.Ho:Ha:14

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Answered: Activity 1.1 Null Vs Alternative…

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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Only about 17 of all people can wiggle their ears. Is this percent lower for millionaires? Of the 319 millionaires surveyed, 45 could wiggle their ears. What can be concluded at the a = 0.01 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: py (please enter a decimal) %3D H: p # (Please enter a decimal) c. The test statistic t v (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 3 decimal places.) e. The p-value is s a f. Based on this, we should fail to reject g. Thus, the final conclusion is that... the null hypothesis. OThe data suggest the populaton proportion is significantly lower than 17% at a = 0.01, so there is statistically significant evidence to conclude that the population proportion of millionaires who can wiggle their ears is lower than 17%. O The data suggest the population proportion is not significantly lower than 17% at a = 0.01, so there is…
4Need help please parts B, C, D
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our question: $ 4 R V 4) There shouldn't be a blood group difference between men and women as blood group type is not dependent on sex. However, you want to determine if there is any evidence to doubt this. You go out and collect the following data on blood types: Sex % Blood type 5 T G B Can you find a significant difference in blood types based on sex? Make sure you clearly state Ho, H₁, etc. Also clearly write out your decision and what it means. Q Search 6 A B Y AB O Male 128 23 14 131 & U 8 Female 159 33 18 161 N M | K H J K 9 O ▶11 O Course: BIOL 214 L P dele back
#6
In a hypothesis test, H0 is p < 0.45 and Ha is p > 0.45. If the test statistic is z = 1.68, what is the P-value? Draw picture and give P-value only. Do not do rest of testing.
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E: interpret your conclusion in the context of the application. 1. Reject the null hypothesis, there is sufficient evidence that the mean REM sleep time for children is more than for adults. 2. Fail to reject the null hypothesis, there is sufficient evidence that the mean REM sleep time for children is more than for adults 3. Reject the null hypothesis, there is insufficient evidence that the mean REM sleep time for children is more than for adults 4. Fail to reject the null hypothesis, there’s insufficient evidence that the mean REM sleep time for children is more than for adults there is
You are testing the difference between high school freshmen and seniors on SAT performance. The null hypothesis is that the population mean SAT score of the seniors is equal to the population mean SAT score of the freshmen. You randomly sample 20 students in each grade and have them take the SAT. You find that the sample mean of the seniors is significantly higher than the sample mean of the freshmen. Which alternative hypothesis is accepted? The population mean SAT score of the seniors is less than the population mean SAT score of the freshmen. The population mean SAT score of the seniors is greater than the population mean SAT score of the freshmen. You cannot be sure which alternative hypothesis to accept. You just know that the null hypothesis was rejected

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