The average time it takes Amazon to ship a product after it has been ordered is 21 hours. A manager at the Amazon Fulfillment Center in Moreno Valley, California thinks their average speed is faster. To test this, she tracks 58 packages to see how long it takes to ship. She obtains the following data in hours: 24.4, 23.2, 19, 21.7, 18.8, 23.4, 25.7, 22.8, 18, 24, 21, 25.4, 23.3, 22.6, 14.2, 23.2, 18.9, 21.1, 21.9, 25.3, 19.3, 24.3, 21.1, 19.4, 18.6, 22.9, 22.8, 20.7, 18.9, 20.3, 24.2, 22.9, 21.2, 25.7, 20.7, 20.6, 26, 21.5, 27.3, 26.3, 19.7, 19, 19.2, 19, 22.2, 11.3, 22.9, 21.8, 16.6, 17.1, 16.5, 15.8, 17.2, 24.1, 20.9, 20.9, 16.2, 14.5 Do you think the manager should conclude that the Fulfillment Center at Moreno Valley does ship items faster?

The average time it takes Amazon to ship a product after it has been ordered is 21 hours. A manager at the Amazon Fulfillment Center in Moreno Valley, California thinks their average speed is faster. To test this, she tracks 58 packages to see how long it takes to ship. She obtains the following data in hours: 24.4, 23.2, 19, 21.7, 18.8, 23.4, 25.7, 22.8, 18, 24, 21, 25.4, 23.3, 22.6, 14.2, 23.2, 18.9, 21.1, 21.9, 25.3, 19.3, 24.3, 21.1, 19.4, 18.6, 22.9, 22.8, 20.7, 18.9, 20.3, 24.2, 22.9, 21.2, 25.7, 20.7, 20.6, 26, 21.5, 27.3, 26.3, 19.7, 19, 19.2, 19, 22.2, 11.3, 22.9, 21.8, 16.6, 17.1, 16.5, 15.8, 17.2, 24.1, 20.9, 20.9, 16.2, 14.5 Do you think the manager should conclude that the Fulfillment Center at Moreno Valley does ship items faster?

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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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Concept explainers

Unitary Method

The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.

Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.

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Question

The average time it takes Amazon to ship a product after it has been ordered is 21 hours. A
manager at the Amazon Fulfillment Center in Moreno Valley, California thinks their average speed is
faster. To test this, she tracks 58 packages to see how long it takes to ship. She obtains the following
data in hours:
24.4, 23.2, 19, 21.7, 18.8, 23.4, 25.7, 22.8, 18, 24, 21, 25.4, 23.3, 22.6, 14.2, 23.2, 18.9, 21.1, 21.9, 25.3,
19.3, 24.3, 21.1, 19.4, 18.6, 22.9, 22.8, 20.7, 18.9, 20.3, 24.2, 22.9, 21.2, 25.7, 20.7, 20.6, 26, 21.5, 27.3,
26.3, 19.7, 19, 19.2, 19, 22.2, 11.3, 22.9, 21.8, 16.6, 17.1, 16.5, 15.8, 17.2, 24.1, 20.9, 20.9, 16.2, 14.5
Do you think the manager should conclude that the Fulfillment Center at Moreno Valley does ship
items faster?
Step 1: State the hypothesis.
? v =
Step 2: Determine the Features of the Distribution of Point Estimates Using the Central Limit
Theorem.
By the Central Limit Theorem, we know that the point estimates are Select an answer
v with
distribution mean
and distribution standard deviation
Step 3: Assuming the Claim is True, Find the Probability of Obtaining the Point Estimate.
P? v? v
P(??v
%3D
%3D

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Weatherwise is a magazine published by the American Meteorological Society. One issue gives a rating system used to classify Nor'easter storms that frequently hit New England and can cause much damage near the ocean. A severe storm has an average peak wave height of ? = 16.4 feet for waves hitting the shore. Suppose that a Nor'easter is in progress at the severe storm class rating. Peak wave heights are usually measured from land (using binoculars) off fixed cement piers. Suppose that a reading of 38 waves showed an average wave height of x = 16.7 feet. Previous studies of severe storms indicate that ? = 3.5 feet. Does this information suggest that the storm is (perhaps temporarily) increasing above the severe rating? Use ? = 0.01. a) What is the value of the sample test statistic? (Round your answer to two decimal places.)
Weatherwise is a magazine published by the American Meteorological Society. One issue gives a rating system used to classify Nor'easter storms that frequently hit New England and can cause much damage near the ocean. A severe storm has an average peak wave height of ? = 16.4 feet for waves hitting the shore. Suppose that a Nor'easter is in progress at the severe storm class rating. Peak wave heights are usually measured from land (using binoculars) off fixed cement piers. Suppose that a reading of 40 waves showed an average wave height of x = 17.5 feet. Previous studies of severe storms indicate that ? = 4.0 feet. Does this information suggest that the storm is (perhaps temporarily) increasing above the severe rating? Use ? = 0.01. Solve the problem using the critical region method of testing (i.e., traditional method). (Round your answers to two decimal places.) test statistic = critical value = State your conclusion in the context of the application. Reject the null…
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Weatherwise is a magazine published in association with the American Meteorological Society. In the January issue there is a rating system to classify Nor’easter storms that frequently hit New England states and can cause much damage near the ocean coasts. A severe storm has an average peak wave height of 16.4 feet for waves hitting the shore. Suppose that a Nor’easter is in progress at the severe storm class rating. Peak wave heights are usually measured from land (using binoculars) off fixed cement piers. Suppose that a sample of 36 peak waves showed an average wave height of 15.1 feet with a sample standard deviation of 3.2 feet. Using a level of significance of 1%, does this information indicate that the storm is retreating? (note; if storm is retreating what is happening to the height of the waves?)
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Weatherwise is a magazine published by the American Meteorological Society. One issue gives a rating system used to classify Nor'easter storms that frequently hit New England and can cause much damage near the ocean. A severe storm has an average peak wave height of ? = 16.4 feet for waves hitting the shore. Suppose that a Nor'easter is in progress at the severe storm class rating. Peak wave heights are usually measured from land (using binoculars) off fixed cement piers. Suppose that a reading of 38 waves showed an average wave height of x = 17.3 feet. Previous studies of severe storms indicate that ? = 3.5 feet. Does this information suggest that the storm is (perhaps temporarily) increasing above the severe rating? Use ? = 0.01. a) Estimate the P-value. choose one: P-value > 0.2500. 100 < P-value < 0.250 0.050 < P-value < 0.1000. 010 < P-value < 0.050 P-value < 0.010 b) Sketch the sampling distribution and show the area corresponding to the P-value.…
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