3. Gravetter/Wallnau/Forzano, Essentials Chapter 2 End-of-chapter question 4 Find each value requested for the distribution of...
4. Gravetter/Wallnau/Forzano, Essentials Chapter 1- End-of-chapter question 18 For the following scores, find the value of each expression 4 x2 =
5. Gravetter/Wallnau/Forzano, Essentials Chapter 1- End-of-chapter question 20 For the following set of scores, find the value of each expression: 2 2 (2X)2- E(x + 3)
4. Gravetter/Wallnau/Forzano, Essentials - Chapter 2 End-of-chapter question 14 Aa Aa For the following scores: 15, 14, 9, 10, 15, 12, 14, 11, 13, 14, 13, 14, 12, 14, 13, 13, 12, 11 Organize the scores in a frequency distribution table. If there are rows in the table below the minimum value of X, leave the X and f blank on any unused rows at the bottom Based on the frequencies, identify the shape of the distribution The distribution is...
1. Gravetter/Wallnau/Forzano, Essentials Chapter 5 End-of-chapter question 4 Aa Aa For a population with μ = 40 and σ-8: Find the z-score for each of the following X values. (Note: You should be able to find these values using the definition of a z-score. You should not need to use a formula or do any detailed calculations. Type your answer to two decimal places.) 48 34 56 38 32 L Find the score (X value) that corresponds to each of...
6. Gravetter/Wallnau/Forzano, Essentials - Chapter 1- End-of-chapter question 22 Use summation notation to express each of the following calculations Add the scores and square the sum O 2(SX) Square each score and then add the squared values Ο Σ(2x + 1) Subtract 2 points from each score and then add the resulting values. Σ(X-29 O (2x)2-2 Ο Σ(x-2) Subtract 1 point from each score and square the resulting values. Then add the squared values. O (2x)2-1 Ο Σ(X2-1)
6. Gravetter/Wallnau/Forzano, Essentials - Chapter 14 - End-of-chapter question 14 Aa Aa E Drag blue circles onto the following graph to sketch the line for the equation Y = 2X - 1. On the same graph, drag orange squares to show the line for Y = -X + 8. Y 2x-1 Y = -X + 8 0 2 4 6 8 10 X Clear All
3. Gravetter/Wallnau/Forzano, Essentials - Chapter 13 - End-of-chapter question 17 Aa Aa The following matrix presents the results from an independent-measures, two-factor study with a sample of n participants in each treatment condition. Note that one treatment mean is missing. 10 Factor B B2 Factor A A1 A2 B1 M-5 What value for the missing mean would result in no main effect for factor A? What value for the missing mean would result in no main effect for factor B?...
1. Gravetter/Wallnau/ Forzano, Essentials ChapterS Aa Aa Find the z-score corresponding to x = 24 and the X value corresponding to z = 1.50 for each of the following samples. Type the z-scores to two decimal places M=20 and s = 12 M-20 and s 4 M 30 and s -8 M=30 and s = 10 z= z z
9. Gravetter/Wallnau/Forzano, Essentials Chapter 11 End-of-chapter question 22 Explain the difference between a matched-subjects design and a repeated-measures design. In a repeated-measures design, the same subjects are used in both treatment conditions. In a matched-subjects design, each subject in one sample has a corresponding subject in the other sample with respect to a specific variable other than the treatment the treatment condition a specific variable other than the treatment
Are my answers correct? 2. Gravetter/Wallnau/Forzano, Essentials - Chapter 10 - End-of-chapter question 6 Two separate samples receive different treatments. After treatment, the first sample has n = 6 with SS = 236, and the second has n = 12 with SS = 340. The pooled variance for the two samples is 36.00 . Compute the estimated standard error for the sample mean difference. Estimated S(M1 - M2) = 3.00 If the sample mean difference is 7 points, is this...