Prob and Stat Ch 6 Review

Prob and Stat Ch 6 Review

12th Grade

16 Qs

quiz-placeholder

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Prob and Stat Ch 6 Review

Prob and Stat Ch 6 Review

Assessment

Quiz

Mathematics

12th Grade

Easy

Created by

Anne Becker

Used 13+ times

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16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Find the critical value for c = 0.95 and n = 15

1.781

2.145

2.131

2.101

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A random sample of 120 students has a grade point average with a standard deviation of 0.6. Find the margin of error if c = 0.90

0.01

0.89

0.10

0.09

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A survey of 800 non-fatal accidents showed that 373 involved the use of a cell phone. Construct a 98% confidence interval for the proportion of non-fatal accidents that involved the use of a cell phone.

(0.43, 0.51)

(0.47, 0.53)

(0.25, 0.75)

.04

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A random sample of 85 tudents has a test score average with a standard deviation of 5.5. Find the margin of error if c=0.95

.13

1.96

1.17

1.22

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A random sample of 120 students has a grade point average with a mean of 3.0 and with a standard

     deviation of 0.75.  Construct the confidence interval for the population mean, if c = 0.98.

.16

(2.75, 3.25)

(2.82, 3.18)

(2.84, 3.16)

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A random sample of 62 fluorescent light bulbs has a mean life of 705 hours with a standard deviation

     of 25 hours.  Construct a 90% confidence interval for the population mean.

 

 

(699.76, 710.24)

5.24

(699.78, 710.24)

1.65

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A random sample of 62 fluorescent light bulbs has a mean life of 705 hours with a standard deviation

     of 25 hours.  Find the margin of error if c = 0.90

 

 

(699.76, 710.24)

5.24

(699.78, 710.24)

1.65

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