Bissoy.com
Doctors Medicines MCQs Q&A

In the past year, residents in Delhi have been suffering from a mysterious illness. A report said that over the past five years, Delhi's air has become extremely polluted, and contains a lot of toxins. Medical experts hypothesized that it is these pollutants that are causing the illness. Which of the following options puts the hypothesis in doubt?

In the past year, residents in Delhi have been suffering from a mysterious illness. A report said that over the past five years, Delhi's air has become extremely polluted, and contains a lot of toxins. Medical experts hypothesized that it is these pollutants that are causing the illness. Which of the following options puts the hypothesis in doubt? Correct Answer Some of the people who have been newly diagnosed began to develop the disease before the air in Delhi got polluted.

Option 1 is correct, as, if the people who got diagnosed, were said to have the disease before the pollutants set in, then the reason of the disease must be something other than the pollutants. Option 2 does not weaken the hypothesis, but in fact, strengthens it. 

Hence, option 1 is correct.

Related Questions

Availability of drinking water is continuously decreasing. The government decided to identify those sources of drinking water which getting polluted. The following table depicts the number of polluted sources in a district. Source of drinking water getting polluted Number Wells 24 Handpump 12 Dam 12 Borewell 6 Ponds 18 The pictograph table for the above table will be (A) Source of drinking water getting polluted Number symbol = 6 source Wells Handpump Dam Borewell Ponds (B) Source of drinking water getting polluted Number symbol  = 6 source Wells Handpump Dam Borewell Ponds (C) Source of drinking water getting polluted Number symbol  = 6 source Wells Handpump Dam Borewell Ponds (D) Source of drinking water getting polluted Number symbol  = 6 source Wells Handpump Dam Borewell Ponds
In the question below, are given a statement followed by three courses of actions numbered I, II and III. On the basis of the information given, you have to assume everything in the statement to be true, and then decide which of the following suggested courses of actions logically follow(s) for pursuing. Statement: Soon VAT 69 whiskey and Smirnoff Vodka will not be found on the shelves of Delhi Liquor stores owing to the duplication of barcode by manufacturer United Limited. The Delhi government financial commissioner blacklisted the manufacturer. Financial commissioner Anindo Majumdar had said in an order dated September 14, that USL had violated provisions of the Delhi Excise Act, 2009 and Delhi Excise Rules, 2010 by using unauthorized and loose barcodes, which could be easily misused. Courses of action: I. The ban will force United Spirits Limited not to sell its liquor in the national capital for two years. II. the appellant violated provisions of the Delhi Excise Act, 2009, Delhi Excise Rules, 2010, the terms and conditions of the license issued to it and the standard operating procedure framed by the Delhi Excise Department and that consequently the department has rightly imposed the penalty of blacklisting under Rule 70 of the Delhi Excise Rules, 2010 upon United Spirits LTD (USL), Aurangabad. III. United Limited has been blacklisted by the Delhi government financial commissioner.
A college/university teacher plans to test his/her substantive research hypothesis in a major project. Which of the following statements are considered relevant in this regard? A. Substantive research hypothesis has to clearly specify the relationship among variables B. Research hypothesis may be directed at finding out differential effects or relationships C. Null hypothesis should be formulated beforehend D. There is direct support available for testing the substantive research hypothesis E. The final decision on the research hypothesis may be reached indirectly by deciding the fate of the Null hypothesis Choose the correct answer from the options given below:
If the first two statements are true, the third statement is :
I. Tom puts on his socks before he puts on his shoes.
II. He puts on his shirt before he puts on his jacket.
III. Tom puts on his shoes before he puts on his shirt.
In this question, a passage and a related statement have been given. Read the passage carefully and assess the statement based on it. Using knives and screws, two Russian astronauts on Tuesday took a sample of substance around a mysterious cavity of the spacecraft called the Soyuz, which was placed in the International Space Station, a Moscow official suggested that it was a break - It can also be done. In August, two months after the last visit of the vehicle, the air leak was detected in the Soyuz spacecraft due to the 2 mm air in the ISS. Roskosmos, an astronomical institute, says that cutting off the insulation on the hole and sampling the material around it and the purpose of putting a new insulation on it is to find out that this small but dangerous hole has been done on earth or Is in space. The chief of Roskosmos has said that the error of manufacturing has not been found in the investigation. Experienced astronauts had to struggle but they managed their mission. Before the spacewalk, astronauts were able to inspect the hole just from within the spacecraft. The biggest difficulty was that in the Soyuz spacecraft, the ISS was not designed to improve during adverse weather space, and no railing was also made to catch the space passengers outside the vehicle. Statement: The mysterious hole in the So yuz spacecraft was due to the error of manufacturing. Select the appropriate from the given options A - Statement is completely true B - The statement is possibly true C - the statement can not be determined D - Statement is completely false
Five politicians F, K, H, M and D not necessary in the same order conducted a meeting to put various issues like Budget, Employment, Poverty, Digitalization and Security. They all are sitting around a circular table facing center. F who is not the neighbor of H and K, puts issue on employment. H who is sitting between D and K puts issue on digitalization. M does not put issue on poverty. The one who puts issue on security sits immediate right of the one who puts issue on Budget. Determine the immediate neighbor of person who puts issue on digitalization?
There are 150 residents in a society. Out of them, 50 residents own a motorcycle, 60 residents own a car and 20 residents own both a car and amotorcycle. How many residents neither own a motorcycle nor a car?
When a particular ‘statistics’ in a research situation is evidently declared to be significant, which of the following decisions will be considered tenable ? A. Null hypothesis is rejected B. Alternative hypothesis is accepted C. Null hypothesis is accepted D. Alternative hypothesis is rejected E. Null hypothesis along with the alternate hypothesis are accepted. Choose the correct answer from the options given below:
A research scholar finds through statistical analysis that the value of 't' is significant. What decision is warranted on the basis of this hypothesis? A. The Null hypothesis should be rejected B. The research hypothesis should be accepted C. The null hypothesis should be accepted D. The research hypothesis should be rejected E. No decision is warranted in respect of the research hypothesis Choose the correct answer from the options given below:
Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.
Fever in the season of dengue is sending Calcuttans scurrying to hospitals for admission, triggering a shortage of beds that has forced some private health care institutes to even postpone planned surgeries. Apollo Gleneagles Hospitals on the Bypass had 504 patients in its care as on Thursday of whom 70 had been admitted with fever. Belle Vue Clinic had 180 patients, 32 of them with dengue. Calcutta Medical Research Institute had 350 patients 60 of them with fever. The number of people admitted for treatment of fever caused by dengue or any undiagnosed illness has been rising every day across hospitals for more than a fortnight. "There has been heavy pressure on all private hospitals for admission of dengue and cases of unknown fever since the beginning of August. Now it is a surge," said Pradip Tondon, President of the Association of Hospitals of Eastern India. In July, four to five patients were getting admitted with fever on an average in every hospital. The number has since ballooned with the Calcutta Municipal Corporation apparently in denial about the extent of the dengue outbreak and the Government focused on playing down the threat. Such has been the rush of patients with fever that some hospitals are calling up people to postpone admissions planned in advance, mostly for surgeries. "We have told many people to come only when we call them to confirm availability of beds," said an official at Belle Vue.
The rush in hospitals has been rising