2. Professional sports teams sometimes "black out" home games on local television to encourage ticket sales. A team owner believes that in the past, 30% of those attending blacked out games were motivated to attend by the blackouts. He wonders if this percentage has decreased so he arranges to poll a random sample of fans at blacked out games and finds that 43 of 166 fans said they were motivated to attend by blackouts. Ho: words: symbols: Ha: words: symbols: 3. The unemployment rate in France is reported by the government in September 2010 to be 10%. Is the employment rate higher than the government is reporting? A random sample of 934 French people showed 12.3% unemployed. Ho: words: symbols: Ha: words: symbols:
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.
![2. Professional sports teams sometimes "black out" home games on local television to
encourage ticket sales. A team owner believes that in the past, 30% of those attending
blacked out games were motivated to attend by the blackouts. He wonders if this
percentage has decreased so he arranges to poll a random sample of fans at blacked out
games and finds that 43 of 166 fans said they were motivated to attend by blackouts.
Ho: words:
symbols:
Ha: words:
symbols:
3. The unemployment rate in France is reported by the government in September 2010 to be
10%. Is the employment rate higher than the government is reporting? A random sample of
934 French people showed 12.3% unemployed.
Ho: words:
symbols:
Ha: words:
symbols:
4. In a rural area only about 30% of the wells drilled 100 ft or less find water. A local man
claims to be able to find water by "dowsing"-waving a forked stick over the ground to
detect where a well should be drilled. You check with 80 of his customers and find that 27
have working wells less than 100 feet deep.
Ho: words:
symbols:
Ha: words:
symbols:
5. Many people have trouble setting up the features of their cell phones so a company has
developed what it hopes will be easier instructions. Their goal is to have no more than 4%
of their customers fail to succeed using the new instructions. They test the system on 200
people of whom 12 are unsuccessful. Is this evidence that they failed to meet their goal?
Ho: words:
symbols:_
Ha: words:
symbols:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4c231020-09b3-47f4-aff9-9fbdb5597c17%2Fb932e3d1-3c99-4a45-ab9e-6f4c7bb6be15%2F69mfz9c_processed.jpeg&w=3840&q=75)
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