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Name: A local pizza delivery company claims that they will deliver pizzas in
Uploaded: 2024-03-20T07:07:12.000Z
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Description: A local pizza delivery company claims that they will deliver pizzas in 30 minutes or less. You collect data from 36 orders, and find that the mean delivery time is actually 32.2 minutes, with a sample standard deviation of 8.9 minutes. Can we say tha

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A local pizza delivery company claims that they will deliver pizzas in 30 minutes or less. You collect data from 36 orders, and find that the mean delivery time is actually 32.2 minutes, with a sample standard deviation of 8.9 minutes. Can we say that the delivery time is significantly higher than the company's claim? (Use α = .10)

Solve by hand please (no excel).

Hypothesis testing will consist of four hypothesis tests which you need to complete. each test will require the following:

Type of Test:

Null Hypothesis:

Alternate Hypothesis:

Standard Error:

Test Statistic:

P-value:

Decision:

Sentence:

Please graph the answer on a graph (Solve p =, z =, etc)

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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