Which of the following numbers, when rounded off to the nearest thousand, becomes 7 541 000? A 7 530 798 C 7 540 618 ( B 7 531 300 D 7 541 503 5. When 690 203 is broken down according to its digit values, it becomes A 690 000 + 20 + 3 B 690 000 + 200 + 3 C 600 000 + 9 000 + 200 + 3 D 600 000 + 90 000 + 200 + 3 ( 6. Which of the following numbers is the nearest to 1 million? A 989 799 C 1 000 100 ( B 997 899 D 1 100 000 7.
Suppose we are interested in comparing means from two independent samples. The mean of the first sample is 9 and the mean of the second sample is 17. Let’s assume that the two group means have the same standard errors, equal to 2.5. The 95 percent confidence interval for the first group mean can be calculated as: 9 ± 1.96 × 2.5 where 1.96 is the critical t-value. The confidence interval for the first group mean is thus (4.1, 13.9).
What are the 3 parameters that define a RFID system? a. Means of powering the tag b. Frequency of operation c. Communication protocol 26. 27.
What does this result mean? The t ratio of -0.65 represents the smallest relative difference between the pretest and 3 months outcomes. This ratio does not have an asterisk next to it in the table which according to the footnotes the asterisk is said to represent p < 0.05 the least stringent acceptable value for statistical significance. 4. What are the assumptions for conducting a t-test for dependent groups in a study?
These are the only possibilities. isometric drawing Finding the Answer orthographic drawing 5. Are there other nets that have three or four triangles that share an edge with the square base? Explain. No; any other such net can be superimposed on one of the nets from Step 3 by a flip or a rotation.
Adam Workman Lab, Week #1 Balance Lab Introduction The purpose of the Balance Lab experiment was to become familiar with the ChemLab software and to become familiar with different mass measurement methods. During the experiment, three different mass measurement methods were used to determine the mass of copper slugs as well as the mass of two different unknown weights: the direct weight method, the weighing by difference method, and the average mass method using both a centigram balance and an electronic balance. Using the centigram balance, the weight of a single copper slug, in grams, is determined using both the direct weight and weight by difference methods. Likewise, using the electronic balance, the same copper slug is measured by direct weight and weighing by difference methods. Using the same electronic balance, the average mass of five copper slugs, in grams, will be determined.
None b. i only c. ii only d. i and ii e. ii and iii 5. For the positive integers a,b, and k, ak || b means that ak is a divisor of b, but ak+1 is not a divisor of b. If k is a positive integer and 2k || 72, then k is equal to p. 2 q. 3 r. 4 s. 8 t. 18 6. If p is the product of integers from 1 to 30, inclusive, what is the greatest integer k for which 3k is a factor of p?
Use the graph to identify the value of µ and . 3) 70 79 A) µ = 9, = 97 88 97 106 115 B) µ = 97, = 27 124 C) µ = 27, = 97 D) µ = 97, =9 4) 4) The normal density curve is symmetric about A) An inflection point B) A point located one standard deviation from the mean C) The horizontal axis D) Its mean 1 5) The area under a standard normal density curve with mean of 0 and standard deviation of 1 is A) 1 B) µ + 2(3 ) C) infinite D) µ + 3 6)
4 c. 1 d. 4 2. a. 5 b. 3 c. 4 d. 7 3. 2.63 x 10-6 4. a. 5 x 106 b.
a) 0.05 b) 0.005 c) 0.5 d) 0.0005 3. What is 0.08 as a percent? a) 80% b) 800% c) 8% d) 0.08% 4. What is 2 ¾ as a percent? a) 2.75% b) 275% c) 27.5% d) 0.275% 5.