Science

ChemistryPrinciples of Instrumental AnalysisThe table for sets of the replicate measurements is given below- A B C D E F 3.5 70.24 0.812 2.7 70.65 0.514 3.1 70.22 0.792 3.0 70.63 0.503 3.1 70.10 0.794 2.6 70.64 0.486 3.3 0.900 2.8 70.21 0.497 2.5 3.2 0.472 The value of mean and standard deviation is to be calculated for the above data sets. The 95% confidence interval for each data is to be determined and the value of interval mean is also to be determined. Concept introduction: The formula for the mean is given as- m e a n ( x ¯ ) = A 1 + A + 2 .................... + A n N = ∑ x i N .................. (1) The formula for the standard deviation is given as- s t a n d a r d d e v i a t i o n = ∑ ( x − x ¯ ) 2 N − 1 ..................….. (2)Start your trial now! First week only $4.99!*arrow_forward*

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7th Edition

Douglas A. Skoog + 2 others

Publisher: Cengage Learning

ISBN: 9781305577213

Chapter A1, Problem A1.12QAP

Interpretation Introduction

**Interpretation:**

The table for sets of the replicate measurements is given below-

A | B | C | D | E | F |

3.5 | 70.24 | 0.812 | 2.7 | 70.65 | 0.514 |

3.1 | 70.22 | 0.792 | 3.0 | 70.63 | 0.503 |

3.1 | 70.10 | 0.794 | 2.6 | 70.64 | 0.486 |

3.3 | 0.900 | 2.8 | 70.21 | 0.497 | |

2.5 | 3.2 | 0.472 |

The value of mean and standard deviation is to be calculated for the above data sets. The 95% confidence interval for each data is to be determined and the value of interval mean is also to be determined.

**Concept introduction:**

The formula for the mean is given as-

The formula for the standard deviation is given as-