# Business Statistics FAST HELP!

**Question description**

Please provide answer and formula

The mean weight of trucks traveling on a particular section of I-475 is not known. A state highway inspector needs an estimate of the mean. He selects a random sample of 47 trucks passing the weighing station and finds the mean weight is 21.9 tons. The population standard deviation is 3.2 tons. What is the 95 percent interval for the population mean?

21.3 and 22.5 | |

21.0 and 22.8 | |

21.1 and 22.7 | |

22.0 and 23.8 |

0.368 | |

0.386 | |

0.434 | |

0.354 |

X | P(x) |

0 | 0.572 |

1 | 0.351 |

2 | 0.072 |

3 | 0.005 |

The mean of the distribution is

0.51 | |

2.80 | |

0.28 | |

0.70 |

24 | |

23 | |

22 | |

28 |

## Tutor Answer

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors