The weights of the five items sampled at each of the next five hours of Shift A were:

03:00 | 04:00 | 05:00 | 06:00 | 07:00 | |
---|---|---|---|---|---|

ITEM 1: | 174g | 173g | 175g | 176g | 170g |

ITEM 2: | 177g | 178g | 175g | 177g | 175g |

ITEM 3: | 177g | 180g | 174g | 178g | 178g |

ITEM 4: | 176g | 172g | 173g | 178g | 177g |

ITEM 5: | 175g | 176g | 174g | 175g | 173g |

Using these figures, continue to record the data, and carry out the calculations to complete the recording boxes below. Once complete click the button to check your answers.

Remember these formulae:

**Sum x**= x1 + x2 + x3 + x4 + x5**Mean**= Sum x / n (where n is the sample size)**Range**= highest value - lowest value