Do one of the following, as appropriate: (a) Find the critical value zα/2, (b) find the critical value tα/2, (c) state that neither the normal nor the t distribution applies.99%; n = 17; σ is unknown; population appears to be normally distributed.Group of answer choicestα/2 =2.921zα/2 =2.583zα/2 = 2.567 Neither the normal nor the t distribution applies.

Answered: Do one of the following, as…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 4CYU

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Question

Do one of the following, as appropriate:

(a) Find the critical value z_α/2,

(b) find the critical value t_α/2,

99%; n = 17; σ is unknown; population appears to be normally distributed.

Group of answer choices

t_α/2 =2.921

z_α/2 =2.583

z_α/2 = 2.567

Neither the normal nor the t distribution applies.

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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