semester : 3<br />1. What does randomization ensure in experimental research?<br />(a) Uniformity of the groups<br />(b) Similarity of the groups<br />(c) Uniformity and similarity of the groups (d) Uniformity, similarity and equal<br />groups.<br />2. Power of the test of significance means probability of what?<br />(a) Incorrect rejection of the null hypothesis<br />(b) Correct rejection of the<br />(c) Incorrect acceptance of the null hypothesi<br />(d) Correct acceptance of th<br />3. What does F-ratio mean?<br />(a) A ratio between mean SSA and mean SSw<br />(b) A ratio which is always<br />(c) A ratio between mean S ST and mean SSA<br />(d) A ratio between means<br />4. In which situation x? (Cbi square) test can be used?<br />(a) k-2, but some expected frequencies are less than S<br />(b) df is greater than I, but more than 20 per cent of frequencies are smaller than S<br />(c) Any expected frequency is smaller than I<br />(d) None of the above is f<br />5. What is wrong about non-parametric tests or significance?<br />(a) They are distribution-free techniques of analysis<br />(b) They assume that groups should be homogeneous<br />(c) They make no assumption about the parameters<br />(d) They do make certain assumptions, but these are fewer and less stringent.<br />6. In evaluating the significance of the research problem, an important social ca<br />(a) The genuine interest of the researcher in the problem.<br />(b) Practical value of the findings to educationists, parents and social workers, etc.<br />(c) Necessary skills, abilities and background of knowledge of the researcher.<br />(d) Possibility of obtaining reliable and valid data by the researchers.<br />7. A hypothesis in educational research need not be<br />(a) A compatible with well-attested theories and models.<br />(b) Logically consistent and pertinent to the question under consideration.<br />(c) Capable of establishing generalizations that can be applied in many areas of ed<br />(d) None of these.<br />8. Thinking analogously about hypothesis, a researcher should<br />(a) First bet and then roll the dice<br />(b) First roll the dice<br />(c) Change his bet after the data are in.<br />(d) Have not<br />9. If the population on which a study is based is such that all its units can be<br />(a) Target population.<br />(b) Accessible popu<br />(c) Homogeneous population.<br />(d) Heterogeneous<br />10. Sampling frame means<br />(a) Identification of target and accessible population. (b) Defining sample uni<br />(c) Preparing a complete list of the units of a finite population for drawing<br />(d) Fixing the sample size and drawing a sample.
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Answer: x = 4
Explanation: Let's solve your equation step-by-step.
3x+2=14
Step 1: Subtract 2 from both sides.
3x+2−2=14−2
3x=12
Step 2: Divide both sides by 3.
3x
3
=
12
3
x=4
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