Nuts A company says its premium mixture of nuts con-tains 10% Brazil nuts, 20% cashews, 20% almonds, and 10% hazelnuts, and the rest are peanuts. You buy a large can and separate the various kinds of nuts. Upon weigh-ing them, you find there are 112 grams of Brazil nuts, 183 grams of cashews, 207 grams of almonds, 71 gramsof hazelnuts, and 446 grams of peanuts. You wonderwhether your mix is significantly different from what thecompany advertises.a) Explain why the chi-square goodness-of-fit test is notan appropriate way to find out.b) What might you do instead of weighing the nuts inorder to use a x2test?
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.
tains 10% Brazil nuts, 20% cashews, 20% almonds, and
ing them, you find there are 112 grams of Brazil nuts,
of hazelnuts, and 446 grams of peanuts. You wonder
whether your mix is significantly different from what the
company advertises.
a) Explain why the chi-square goodness-of-fit test is not
an appropriate way to find out.
b) What might you do instead of weighing the nuts in
order to use a x2
test?
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