19. A sample of n = 7 scores has a mean of M = 5. After one new score is added to the sample, the new mean is found to be M 6. What is the value of the new score? (Hint: Compare the values for EX before and after the score was added.) %3D %3D 9 scores has a mean of M = 13. After 21. A sample of n = one score is added to the sample the mean is found to be M = 12. What is the value of the score that was added? %3D %3D

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A: Given information: The data represents the scores of the math exam and English exam for 20 students.

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A: Given Information ' n = 25 μ = 62 and σ = 12 Sample mean M = 56

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A: Given,  S=9  X=67and Z=1

Q: Suppose the mean of a math exam score is 70 with a standard deviation of 12. If each score is…

A:

Q: A sample of n=5  scores has a mean of M=12. If one new score with a value of  X=18 is added to the…

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Q: 20. One sample of n 12 scores has a mean of M-7 and a second sample of n =8 scores has a mean of M…

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A: Given : A sample of n= 5 has a mean of M=12   Mean :  Substituting value of M & n in above ,…

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A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

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A: The Null hypothesis H0: μ = 30. The mean is not different from typical text book. Alternative…

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A: Given that, mu= 3.58.s= 1.52 Sample size, n= 64 We've to find P(3.20<X<3.96) We know that,  Z…

Q: 11. A sample of n = 6 scores has a mean of M = 13. If one person with a score of X = 3 is removed…

A: Given data: A sample of n = 6 scores has a mean of M = 13. If one person with a score of X = 3 is…

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Q: 14. A sample of n = 9 scores has a mean of M of the scores is changed and the new mean is found to…

A: 14.

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A: A sample of n = 4 scores has a mean of M = 75.

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A: Given Data: Mean1-Mean2=2900-2600=300 SE=25.49

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A: a) Given μ =75, X = 80. Consider, the z score with σ = 5: z=X-μσ=80-755=1 Consider, the z score with…

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A: Given information: n=25Old mean=11 Sum of 25 scores=Number of scores×Mean of scores =25*11=275

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A: Givena)x distribution has mean µ = 2The mean of the sampling distribution is nothing but the…

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A: For Mathematics the z score is calculated as:

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Q: A sample of n=4 scores has a mean of M=75. Find the z-score for this sample: a. If it was obtained…

A: Plug in all the values in the formula, we get

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Q: A sample of n=4 scores has a mean of M=75. Find the z-score for this sample: a. If it was obtained…

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Q: 1. A sample of n = 16 individuals is selected from a population with u = 40 and u - 12, and a…

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