Median household income in a particular county is $46,250. A researcher is interested to see whether students at the county community college have amedian household income lower than the county overalI. She selects 15 students at random and determines that 12 have a household income below thecounty median, one has an income equal to the county median, and two have a household income above the county median. She wishes to conduct hertest using the 0.05 significance level. What is the decision rule?Multiple ChoiceReject Ho if the number above the median is <3 or 28.Reject Ho if the number above the median is <3.Reject Ho if the number above the median is <2 or 210.Reject Ho if the number above the median is <2.

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Answered: test using the 0.05 significance level.…

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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Please do not give solution in image formate thanku. A school psychologist wants to determine if reprimanding in public (in front of the class) or private is more effective for curbing behavior. He randomly selects 12 students whose teachers reprimand in private and 12 students whose teachers reprimand in public. At the end of the year he determines the number of misbehaviors for each student. For the public condition and mean=7.7 and s=4.1 for the private condition mean=4.2 and s=3.5. Which method is more effective? What is the percentage of variance accounted for by the method of reprimand? What is the power of your test?
Monthly telephone charges for cell phone in the United States are normally distributed with a mean of $62 for a single user. Coach Keefer thinks that leasing smart phones has increased the monthly cell phone bill for a single user. H: μ- 62 H : μ 62 O Ho : µ= 62 H : μ> 62 O Ho : µ= 62 H : μ 62 a O Ho : 62 Ha : ữ + 62
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test using the 0.05 significance level. What is the decision rule? Multiple Choice Reject Ho if the number above the median is s3 or 28. Reject Ho if the number above the median is s3. Reject Ho if the number above the median is s2 or 210.