A researcher wishes to study whether classical music has any effect on the ability to memorize informatio A random sample of 61 adults were given a memory test in a quiet room. Then they were given a second memory test while listening to classical music. On the second test, 40 people received a higher score, 19 received a lower score, and 2 received the same score. A sign test at the 0.10 significance level will be used to test the claim that the music has no effect on memorization ability. Round your answers to 3 places after the decimal point, if necessary. (a) What is the value of the test statistic used in this sign test? Test statistic's value: (b) Give the value(s) of the critical value(s) used in this sign test. If there are two critical values, enter them both with a comma between them. Critical value(s):

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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.