find1. T value 2. P value 3. Critical values 4. Reject or do not reject 5. State conclusion College tuition: The mean annual tuition and fees for a sample of 23private colleges in California was $38,500 with a standard deviation of $7700.A dotplot shows that it is reasonable to assume that the population isapproximately normal. Can you conclude that the mean tuition and fees forprivate institutions in California is greater than $35,000? Use the α=0.05 levelof significance and the P-value method with the TI-84 Plus calculator.Part 1 of 5(a) State the appropriate null and alternate hypotheses.Ho: | u = 35,000H₁:μ> 35,000This hypothesis test is a right-tailed ▼ test.Part: 1 / 5Part 2 of 5(b) Compute the value of the test statistic. Round the answer to twodecimal places.tXŚ

Any statement or assertion about a statistical population or the values of its parameters is called…

Answered: College tuition: The mean annual…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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22
Select the correct answer(s) for each item. If NONE or MORE THAN ONE of the choices is the correct answer, choose E.
A researcher thinks some social media sites are more prone to narcissistic behavior (excessive posting) than others. To examine the relationship between narcissism and social media, she recruits users of three different social media sites (Facebook, Twitter and Instagram), follows them for 24 hours and records the number of posts made by each user. The number of posts is given in the table below. Twitter Facebook Instagram 10 7 14 10 8. 10 10 10 11 9. www. 12 wwww. 11 13 12 8. 7 8. 11 8 10 12 11 11 a. Perform a complete hypothesis test to determine whether there are any significant differences among the three groups. Test at the .05 level of significance. SHOW ALL YOUR WORK b. Do you need to perform post hocs? Explain but do not compute the post hocs. C. Compute effect size. d. Summarize your findings in a source table. e. Write an interpretation of our results in APA-format (include means and SDs in your interpretation)
25. The engagement team wants to create a custom analytic to visualize a large quantity of data requiring extensive data cleansing. Which approach is most efficient and effective to meet their needs? (Select the best answer.) a. Involve a data analytics specialist b. o Create a custom analytic using Power Bl c. O Create a custom analytic using the Excel Analytics Toolbar d. o Purchase a Tableau license for the audit team
9. value= The table below lists all 50 states in the United States of America and their 2015 violent crime rates. This rate measures the number of violent crimes in a state per 10,000 people. For instance, if a state had 12,000 violent crimes and a population size 2,300,000, its violent crime rate was $(2,300,00) 10,000 = 52. a. C. d. e. X TABLE 3.2: List of States with 2015 Violent Crime Rates Measured as Number of Violent Crimes per 10.000 Population Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana lowa Kansas Kentucky 43 64 42 46 40 31 26 49 47 37 25 22 38 36 27 34 21 Louisiana 52 Maine 13 Maryland 47 Massachusetts 41 Michigan 45 20 Minnesota 23 24 Mississippi 27 7 Missouri 43 20 Montana 25 Nebraska 26 Nevada 60 New Hampshire 22 New Jersey 29 New Mexico 61 New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington…
Total blood volume (in ml) per body weight (in kg) is important in medical research. For healthy adults, the red blood cell volume mean is about μ = 28 ml/kg.† Red blood cell volume that is too low or too high can indicate a medical problem. Suppose that Roger has had seven blood tests, and the red blood cell volumes were as follows. 34 25 43 34 28 37 31 The sample mean is x ≈ 33.1 ml/kg. Let x be a random variable that represents Roger's red blood cell volume. Assume that x has a normal distribution and σ = 4.75. Do the data indicate that Roger's red blood cell volume is different (either way) from μ = 28 ml/kg? Use a 0.01 level of significance. (a) What is the level of significance? State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test? H0: μ = 28 ml/kg; H1: μ > 28 ml/kg; right-tailed H0: μ = 28 ml/kg; H1: μ ≠ 28 ml/kg; two-tailed H0: μ ≠ 28 ml/kg; H1: μ = 28 ml/kg; two-tailed H0: μ = 28 ml/kg; H1: μ < 28 ml/kg;…
12. When a certain product is sold at a price of 40 monetary units, 400 items are sold. Each time the price decreases by 0.1 monetary unit, sales increase by 5 units. Denote by x the number of times the price is decreased by 0.1 monetary units. a. Express p and q in terms of x. b. Express x in terms of p. c. Express q in terms of p. Originally, the revenue is 16 000 monetary units. d. Find for which values of p the company has revenue exceeding 16 000 monetary units.
1. Assume that you are given a 5x3 contingency table with data relating to Household Income Y and Family X. A partial analysis of the das shows that calculated =16.26. At the 0.05 level of significance, what conclusion can be drawn?
Total blood volume (in ml) per body weight (in kg) is important in medical research. For healthy adults, the red blood cell volume mean is about ? = 28 ml/kg.† Red blood cell volume that is too low or too high can indicate a medical problem. Suppose that Roger has had seven blood tests, and the red blood cell volumes were as follows. 34 23 40 37 28 38 29 The sample mean is x = 32.714 ml/kg. Let x be a random variable that represents Roger's red blood cell volume. Assume that x has a normal distribution and ? = 4.75. Do the data indicate that Roger's red blood cell volume is different from ? = 28 ml/kg? Use ? = 0.01. (a) What is the level of significance?State the null hypothesis H0 and the alternate hypothesis H1 . H0 : ? H1 : ? What kind of test is this? left-tailed testtwo-tailed test right-tailed test (b) What sampling distribution will you use? Explain the rationale for your choice of sampling distribution. The standard normal, since we assume that x…
Total blood volume (in ml) per body weight (in kg) is important in medical research. For healthy adults, the red blood cell volume mean is about μ = 28 ml/kg.† Red blood cell volume that is too low or too high can indicate a medical problem. Suppose that Roger has had seven blood tests, and the red blood cell volumes were as follows. 33 24 41 36 31 38 28 The sample mean is x ≈ 33.0 ml/kg. Let x be a random variable that represents Roger's red blood cell volume. Assume that x has a normal distribution and σ = 4.75. Do the data indicate that Roger's red blood cell volume is different (either way) from μ = 28 ml/kg? Use a 0.01 level of significance. (c) Find (or estimate) the P-value. (Round your answer to four decimal places.)
Total blood volume (in ml) per body weight (in kg) is important in medical research. For healthy adults, the red blood cell volume mean is about μ = 28 ml/kg.† Red blood cell volume that is too low or too high can indicate a medical problem. Suppose that Roger has had seven blood tests, and the red blood cell volumes were as follows. 33 26 42 34 28 35 31 The sample mean is x ≈ 32.7 ml/kg. Let x be a random variable that represents Roger's red blood cell volume. Assume that x has a normal distribution and σ = 4.75. Do the data indicate that Roger's red blood cell volume is different (either way) from μ = 28 ml/kg? Use a 0.01 level of significance. (a) What is the level of significance? Compute the z value of the sample test statistic. (Round your answer to two decimal places.)(c) Find (or estimate) the P-value. (Round your answer to four decimal places.)
Q1. A psychologist conducted a study on the relationship between introversion and shyness. The values are results for scales of introversion and shyness. High positive scores on each scale indicate high introversion or shyness; and high negative scores indicate low introversion or shyness. Data collected from 10 people as follows: Introversion 4 -7 -1 0 6 7 -4 -9 -5 8 Shyness 11 -7 -1 -3 0 7 -1 -8 -1 5 a) Compute the correlation coefficient relating introversion and shyness scores. b) Find the regression equation which predicts introversion from shyness. c) What introversion score would you predict from a shyness score of 7?

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