production process is considered to be working properly as long as the variance in the lengths of the parts does not exceed 0.040 squared-units. Suppose the sample variance computed from 23 parts turns out to be s2 = 0.063. (You may find it useful to reference the appropriate table: chi-square table or F table) a. Select the null and the alternative hypotheses to test if the production specification is not being met at a 5% level of significance. Hg: s 0.040; HA: o2 > 0.040 He: o - 0.040; HA: o2 * 0.040 He: of 2 0.e40; HA: o2 < 0.040 b. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.) Test statistic c. Find the p-value. O 0.025 s p-value < 0.05 O 0.01 s p-value < 0.025 O p-value < 0.01 O p-value 2 0.10 O 0.05 s p-value < 0.10 d. Is the production specification violated at the 5% level? O No, since the p-value is more than significance level. O No, since the p-value is less than significance level. O Yes, since the p-value is more than significance level. O Yes, since the p-value is less than significance level.

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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.