(a)State the null and alternative hypotheses (b)Calculate the sample x2 value
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.
Data have been collected on the weekly sales of Zippy Chippy, a silicon valley firm, and on whether the U.S economy was rising to a cycle peak, at a cycle peak ,falling to a cycle trough, or at a cycle trough. The results are:
Weekly chip sales
High Medium Low Total
|
Economy at peak 30
at trough 100
at rising 30
at falling 40
Total 100 60 40 200
for exercise above:
(a)State the null and alternative hypotheses
(b)Calculate the sample x2 value
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