Hi! Kindly help me answer pls thank u so much! A metal detector tries to distinguish between a person who is carrying aweapon or bomb from those who are not.LetH_0:the person is not carrying a weaponH_a:the person is carrying a weapon.Describe the situation of committing a type I error.The detector does not set off an alarm and in fact the person is not carrying aweapon.O The detector sets off an alarm when in fact the person is not carrying aweapon.O The detector does not set off an alarm when in fact the person is carrying aweapon.O The detector sets off an alarm and in fact the person is carrying a weapon.

Given: It is given that Null hypothesis: H0 : "The person is not carrying a weapon" Alternative…

Answered: A metal detector tries to distinguish…

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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Similar questions

An airline wants to test the null hypothesis that 60percent of its passengers object to smoking inside the plane. Explain under what conditions they would be com-mitting a type I error and under what conditions they would be committing a type II error.
A researcher finds a test statistic that does not fall in the rejection region; however, not all of the assumptions are compeltely valid. Select the appropriate statement. We cannot conclude H1, but given our decision there is a concern of an inflated Type I error. We can conclude H1, but given our decision there is a concern of an inflated Type II error. We can conclude H1, but given our decision there is a concern of an inflated Type I error. We cannot conclude H1, but given our decision there is a concern of an inflated Type II error.
A breathalyser test is used by police in an area to determine whether a driver has an excess of alcohol in their blood. The device is not totally reliable: 6 % of drivers who have not consumed an excess of alcohol give a reading from the breathalyser as being above the legal limit, while 10 % of drivers who are above the legal limit will give a reading below that level. Suppose that in fact 12 % of drivers are above the legal alcohol limit, and the police stop a driver at random. Give answers to the following to four decimal places. Part a) What is the probability that the driver is incorrectly classified as being over the limit? Part b) What is the probability that the driver is correctly classified as being over the limit? Part c) Find the probability that the driver gives a breathalyser test reading that is over the limit. Part d) Find the probability that the driver is under the legal limit, given the breathalyser reading is also below the limit.
A gardener believes that the proportion of days that his garden gets rain is less than 33%. Select the hypothesis test decision that would define a Type II error. Not conclude that the true proportion of rain days is less than 33% when it is less than 33%. Conclude that the true proportion of rain days is less than 33% when it is less than 33%. Conclude that the true proportion of rain days is less than 33% when it is at least 33%. Not conclude that the true proportion of rain days is less than 33% when it is at least 33%. None of the above
A researcher finds a test statistic that falls in the rejection region; however, not all of the assumptions are compeltely valid. Select the appropriate statement. We can conclude H1, but give our decision there is a concern of an inflated Type II error. We cannot conclude H1, but give our decision there is a concern of an inflated Type II error. We cannot conclude H1, but give our decision there is a concern of an inflated Type I error. We can conclude H1, but give our decision there is a concern of an inflated Type I error.
Suppose a storeowner assumes that all his employees are honest; however, shortages in the cash received have been frequent in the past weeks. There is a possibility that one of the employees take the extra cash. The owner does not know whether to accuse or just let the situation pass since the shortage could be due accidental tendering of incorrect change to customers. State the null and alternative hypothesis in words. Describe the Type I or II error. Which do you think is the most serious error? Explain.
A random sample of 190 engineering faculty members was asked if there should be arequired software development course for engineering majors. Of these samplemembers, 135 felt there was a need for a software course. Test the hypothesis that atleast 70% of all engineering faculty members hold this view. Use α= 0.02.
In which case is a type II error committed?
The mean weight of male aerobics instructors in a certain city is less than 185 lbs. Express the null and alternative hypotheses in symbolic form for this claim.
A baseball team claims that the mean length of its games is more than 2.6 hours. State H0 and Ha in words and in symbols. Then determine whether the hypothesis test for this claim is left tailed, right tailed, or two tailed. State the null hypothesis in words and in symbols.
Find the Type II error given that the null hypothesis, H0, is: there are no more than 15% of structures in the county were built without permits.And, the alternative hypothesis, Ha, is: a building inspector claims that more than 15% of structures in the county were built without permits. Select the correct answer below: The building inspector concludes that more than 15% of the structures in the county were built without permits when, in fact, no more than 15% of the structures were built without permits. The building inspector concludes that more than 15% of the structures in the county were built without permits when, in fact, more than 15% of the structures were built without permits. The building inspector cannot conclude that more than 15% of the structures in the county were built without permits when, in fact, no more than 15% of the structures were built without permits. The building inspector cannot conclude that more than 15% of the structures in the county were…
A private school official claims that more than 70% of the students who come to their school to prepare for the university entrance exam, get the degree they want at the university. In order to investigate this claim, 120 students who were randomly selected among the students who went to the said school and won the university were asked whether they won the department they wanted or not, and it was learned that 90 students won the department they wanted in the university. Make a hypothesis about the official's claim.

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