6.3.2 In a study of the effects of early Alzheimer's disease on nondeclarative memory, Reber et al. (A-2) used the Category Fluency Test to establish baseline persistence and semantic memory and language abilities. The eight subjects in the sample had Category Fluency Test scores of 11, 10, 6, 3, 11, 10, 9, 11. Assume that the eight subjects constitute a sim- ple random sample from a normally distributed population of similar subjects with early Alzheimer's disease. (a) What is the point estimate of the population mean? (b) What is the standard deviation of the sample? (c) What is the estimated standard error of the sample mean? (d) Construct a 95 percent confidence interval for.the population mean category fluency test score. sll Noi (e) What is the precision of the estimate? (f) State the probabilistic interpretation of the confidence interval you constructed. (g) State the practical interpretation of the confidence interval you constructed.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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Chapter11: Data Analysis And Probability
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hello could you help with (e) and (f) please I don't understand 

6.3.2 In a study of the effects of early Alzheimer's disease on nondeclarative memory, Reber
et al. (A-2) used the Category Fluency Test to establish baseline persistence and semantic
memory and language abilities. The eight subjects in the sample had Category Fluency
Test scores of 11, 10, 6, 3, 11, 10, 9, 11. Assume that the eight subjects constitute a sim-
ple random sample from a normally distributed population of similar subjects with early
Alzheimer's disease.
(a) What is the point estimate of the population mean?
(b) What is the standard deviation of the sample?
(c) What is the estimated standard error of the sample mean?
(d) Construct a 95 percent confidence interval for.the population mean category fluency
test score.
sll Noi (e) What is the precision of the estimate?
(f) State the probabilistic interpretation of the confidence interval you constructed.
(g) State the practical interpretation of the confidence interval you constructed.
Transcribed Image Text:6.3.2 In a study of the effects of early Alzheimer's disease on nondeclarative memory, Reber et al. (A-2) used the Category Fluency Test to establish baseline persistence and semantic memory and language abilities. The eight subjects in the sample had Category Fluency Test scores of 11, 10, 6, 3, 11, 10, 9, 11. Assume that the eight subjects constitute a sim- ple random sample from a normally distributed population of similar subjects with early Alzheimer's disease. (a) What is the point estimate of the population mean? (b) What is the standard deviation of the sample? (c) What is the estimated standard error of the sample mean? (d) Construct a 95 percent confidence interval for.the population mean category fluency test score. sll Noi (e) What is the precision of the estimate? (f) State the probabilistic interpretation of the confidence interval you constructed. (g) State the practical interpretation of the confidence interval you constructed.
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