I the 95 Percent Confidence Interval States That 95 Percent

question 4

Multiple Choice

i. The 95 percent confidence interval states that 95 percent of the sample means of a specified
Sample size selected from a population will lie within plus and minus 1.96 standard deviations of the
Hypothesized population mean.
ii. A distribution of sample means is normally distributed with a mean equal to the population mean
And a standard deviation equal to the standard error of the mean.
iii. A sample mean is the best point estimate of a population mean.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) and (ii) are correct statements but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (i), (ii), and (iii) are all false statements.

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Definitions:

Gunpowder

A chemical mixture used in the past as a propellant in firearms and fireworks, consisting mainly of saltpeter, charcoal, and sulfur.

Gilberto

A given name of Portuguese or Italian origin, often signifying someone with a bright or shining pledge.

Trumpet

a brass musical instrument with a flared bell and bright, penetrating tone, played by blowing air through closed lips to produce a buzzing sound.

Pyrotechnics

The science and craft of using self-contained, exothermic chemical reactions to produce heat, light, gas, smoke, and/or sound for entertainment or industrial purposes.