A point estimate is a single number that is used as an estimate of a population parameter or population characteristic. It is usually derived from a random sample from the population of interest.
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Q. 2The analysis of variance (ANOVA) technique analyzes the variance of the data to determine whether differences exist between the population variances.
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Q. 3A statistic is said to be unbiased if its sampling distribution has the smallest standard error.
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Q. 4In analysis of variances, the sum of squares for error (SSE) is zero when all the sample variances are equal.
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Q. 5An interval estimate is an interval that provides an upper and lower bound for a specific population parameter whose value is unknown.
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Q. 6In analysis of variances, the sum of squares for treatments (SST) is zero when all the sample means are equal.
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Q. 7Among the most common sources of random variation is:
a. people
b. materials
c. equipment
d. all of these
e. none of these
Q. 8One of the assumptions underlying analysis of variance for a completely randomized design is that the observations within each population are normally distributed with unequal variance.
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