Write TRUE or FALSE on the space provided. Write the whole word!! ___ An online

Question

Write TRUE or FALSE on the space provided. Write the whole word!! ___ An online survey is generally not a reliable source of unbiased data. ___ According to the CLT, p: N (p, Squareroot p (1 - p)/n). ___ The wording of a survey question never introduces bias. ___ A confidence interval for p always contains the value of p for the used sample. ___ The test statistic in a hypothesis test involving one proportion measures how many standard errors p is away from the value of p given in the null hypothesis ___ One way to decrease the margin of error in a confidence interval is to decrease the sample size. ___ The p-value may never be negative. ___ A statistic is a numerical value that describes a characteristic of a sample. ___ P (z > 0) = 0.05 ___ In a hypothesis test we reject H_0 when the level of significance is less than the p-value.

Explanation / Answer

1. True
2. True
3. False
4. True
5. True
6. False
As sampling size decreaes the marginal error increases
7. True since p-value is nothing but probability value, it is always lies between 0 and 1
8. True
Since statistics is function of sample values
9. False
since P(Z>0) = 0.5
10. False
since we accept H0 if P-value > LOS

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