Description : Which test is used for comparing two means from independent samples? (A) F – test (B) t – test (C) Chi – square – test (D) Z – test
Last Answer : (B) t – test
Description : The square of standard deviation is (A) Coefficient of variance (B) Standard deviation (C)Variance (D) Mean deviation
Last Answer : (C)Variance
Description : If a sample of 132 customers were taken from a population of 2340 customers s2 could refer to the variance of how many of the customers' ages?
Last Answer : Feel Free to Answer
Description : Which one of the following is a type of nonparametric test? a. t-test b. Chi-squire c. z-test d. f-test
Last Answer : b. Chi-squire
Description : t-test is applicable when the numbers of treatments are (A) 2 (B) 6 (C) 8 (D) 12
Last Answer : (A) 2
Description : To test the proportions and variance, we use
Last Answer : Ans. ‘F’ test
Description : One method of troubleshooting digital circuits in a console is to ___________. A. supply alternate logic levels at the input(s) and test for change of state conditions at the output B. ground all ... output D. vary each input smoothly from 0-10 volts and test for similar variance at the output
Last Answer : Answer: A
Description : .Test the following system for time in variance.
Last Answer : y(n)=n x2(n) The response y(n) to delayed excitation is, y(n-k)=n x2(n- k )…………..(1) The delayed response is, y(n- k)=(n- k) x2(n- k)……..(2) Eqn. (1) is not equal to Eqn. (2). Hence the given system is time varying.
Description : f the mean and the median pertaining to a certain character of a population are of the same value, the following is most likely to occur (a) a bi-modal distribution (b) a T-shaped curve (c) a skewed curve (d) a normal distribution.
Last Answer : (d) a normal distribution.
Description : According to Malthusian theory of population - (1) Population increases in geometric ratio, food supply increases in arithmetic ratio (2) Population increases in arithmetic ratio, food supply increases in ... (4) Population increases in a harmonic ratio, food supply increases in a arithmetic ratio
Last Answer : (1) Population increases in geometric ratio, food supply increases in arithmetic ratio Explanation: In his 1798 work, An Essay on the Principle of Population, Malthus ermined the relationship between population ... e. by the repeated addition of a uniform increment in each uniform interval of time).
Description : According to Malthusian theory of population (1) Population increases in geometric ratio, food supply increases in arithmetic ratio (2) Population increases in arithmetic ratio, food supply increases in ... (4) Population increases in a harmonic ratio, food supply increases in a arithmetic ratio
Last Answer : Population increases in geometric ratio, food supply increases in arithmetic ratio
Description : What is the difference between arithmetic density of population and physiological density of population? -Geography
Last Answer : Arithmetic Density of Population Physiological Density of Population Total population/total area Total population/net cultivated area
Description : Double cross hybrid maize production technique was introduced by (A) G.H. Shull (B) Mendel (C) D.F.Jones (D) E.M.East
Last Answer : (C) D.F.Jones
Description : Red and purple colour of maize (Zea Mays) is due to deficiency of (A) Ca (B) N (C)F (D) P
Last Answer : (D) P
Description : Rent theory of profit was given by— (A) Hawley (B) C.P. Blacker (C) Tanssig (D) F.A. Walker
Last Answer : (D) F.A. Walker
Description : The pathogen f rice blast or ‘rotten neck’ is (a) Ustilago tritici (b) Pyricularia oryszae (c) Alternaria alternate (d) Plasmopora vitticola
Last Answer : (b) Pyricularia oryszae
Description : Which of the following techniques ar used to create transgenic crops? a. Budding and Grafting in fruit plants b. Cytoplasmic male sterility c. Gene slicing d. Only 1 e. Both 1 and 2 f. Both 2 and 3 g. Both 1 and 3
Last Answer : f. Both 2 and 3
Description : Indian agriculture is facing the following major problems. Which is NOT CORRECT? (a) Land degradation (b) Rising population (c) Lack of bullock power (d) Stagnant cultivable area
Last Answer : (c) Lack of bullock power
Description : Practice of forestry with the object of raising flowering trees and shrubs mainly to serve as recreation forests for the urban and rural population, is known as? [a] Recreation forestry [b] Extension forestry [c] Farm forestry [d] Mixed forestry [e] All of these
Last Answer : [a] Recreation forestry
Description : The optimum plant population per hectare of bajra is (a) 50,000 plants (b) 1,00,000 plants (c) 1,50,000 plants (d) 2,00,000 plants
Last Answer : (b) 1,00,000 plants
Description : A group of students of arithmetic mean of the marks in a test was 63. The brightest 30% of them secured a mean score of 70 and the dullest 15% a mean score of 41. The mean score of remaining 55 % is A) 63.675 B) 61.785 C) 65.181 D) 66.67
Last Answer : C) Let the requird mean score be ‘x’ Then (30*70)+(15*41)+55x = 63*100 2100+615+55x=6300 2715+55x=6300 55x=3585 X=65.181
Description : Is The variance is the mean of the sum of the squared deviation between each observation and the median?
Description : Which transformation is applied when mean a variance
Last Answer : Ans. Square root
Description : The distribution in which Mean = Variance
Last Answer : Ans. Poison distribution
Description : The distribution in which Mean > Variance
Last Answer : Ans. Bionomial distribution
Description : The equation, X = A cos(wt + f) (read: X equals A times the cosine of omega t + phi (fee)), can represent an expression for: w) accelerating due to gravity x) uniform straight line motion y) dc current z) a simple harmonic oscillator
Last Answer : ANSWER: Z -- A SIMPLE HARMONIC OSCILLATOR
Description : Triticale is a cross between: (A) Wheat x Rye (B) Wheat x Barley (C) Barley x Oat (D) t x Oat
Last Answer : (A) Wheat x Rye
Description : Which weedicide is used to kill broad leaf weeds in wheat ? (A) 2, 4 - D.S.S. (WPSS) (B) 2, 4, 5 - T (C) 2, 4 - DB (D) None of these
Last Answer : (A) 2, 4 - D.S.S. (WPSS)
Description : The existence of a gas is vanished atA. N.T.P. B. At any temperature C. Absolute zero D. 0°C E. None of the above
Last Answer : C. Absolute zero
Description : The radiator should he filled with the solution and allowed to remain there for a) 4 to 6 hours b) 6 to 6 hours c) 8 t o 10 hours d) 10 to 12 hours
Last Answer : c) 8 t o 10 hours
Description : In H.T.S.T. pasteurization, which one of the following organisms is chosen as index organism for killing? 1) S.thermophilus 2) S.lactis 3) B.subtilis 4) M.tuberculosis
Last Answer : 1) S.thermophilus
Description : On nephelometry turbidity unit (NTU) is equal to the turbidity produced by (a) 1 mg SiO2 dissolved in 1 l of distilled water with the test being run according to absorption principle (b) 1 ... Formazin dissolved in 1 l o f distilled water with the test being run according to scattering principle.
Last Answer : (d) 1 mg Formazin dissolved in 1 l o f distilled water with the test being run according to scattering principle.
Description : When is rogging done ?
Last Answer : Roging is done before flowering.
Description : Halkhata is done during any festival ?
Last Answer : Halakhata is done during Nabanna festival
Description : Crop logging is done in (A) Sugarcane (B) Maize (C)Tobacco (D) Cotton
Last Answer : (A) Sugarcane
Description : Seed treatment is done to control— (A) Soil-borne disease (B) Air-borne disease (C) Seed-borne disease (D) None of these
Last Answer : (C) Seed-borne disease
Description : Pudding is done to— (A) Reduce percolation of water (B) Pulverise and levelling soil (C) Kill weeds (D) All of the above
Last Answer : (D) All of the above
Description : The tillage that is done immediately after crop harvesting to remove the weeds and to restore soil structure is? A. strip B. sub-soil C. fallow D. stubble
Last Answer : D. stubble
Description : Caprification is done in A) Fig B) Ber C) Avacado D) Date palm
Last Answer : A) Fig
Description : Spraying should be done according to thea) direction of air b) direction of wind c) cropping patter
Last Answer : b) direction of wind
Description : Recording of milk production in dairy (agriculture exams library) farm is done mainly for – a) Selection of good producer b) Increase in production of milk c) Ensuring quality of milk d) Quick selling of milk
Last Answer : a) Selection of good producer
Description : Which type of Tillage is done at a depth of 4–5 cm by tractor cultivators, generally done at Pre-emergence stage? [a] Blind Tillage [b] Green Tillage [c] Clean Tillage [d] Mulch Tillage [e] None of the above
Last Answer : [c] Clean Tillage
Description : Seed treatment of which crop is done by Captan or Cerasan @ 5gm / kg seed– (a) Cotton (b) Jute (c) Satflower(d) Mondua
Last Answer : (a) Cotton
Description : Retting in jute is done at a temperature of? a 28° C b 30° C c 34° C d 36° C
Last Answer : c 34° C
Description : What capability allows the arithmetic/logic section to test various conditions encountered during processing and take action based on the result?
Last Answer : Logic.
Description : Price movement between two Information Technology stocks would generally have a co-variance. A. zero B. positive C. negative
Last Answer : B. positive
Description : In the question given below, there are two statements followed by two conclusions. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read all the ... queens are kings. (1) Only I follows (2) Only II follows (3) Neither I nor II follows
Last Answer : (3) Neither I nor II follows
Description : A Statistical measure of the Degree to which two variables move together A. Coefficient of variation B. Variance C. Covariance D . Certainty equivalent
Last Answer : Answer: C
Description : Are there any cases where an average value can be maximized only at the cost of increasing variance?
Last Answer : answer:Are you looking for real world examples? Assuming so You would probably like your income from work to be as high as possible, and would like to keep the value above a certain level where you ... does, since it's a much simpler set of rules if you can identify the likelihood of winning.
Description : Do women have wider variance in the people they find attractive then men do?
Last Answer : I’ve been attracted to, or at least found attractive just about every size and shape.