the following data represent the smoking status by level of education for residents 18 years old or older living ina certain country from a random sample of 1054 residents. Compute the value of test statNumber of Years of Education Smoking StatusCurrent Former Never<12178882081213-151376914344254416 or more 3534333351

Step 1: State Null and Alternative HypothesesNull Hypothesis (Ho): The level of education and…

Answered: the following data represent the…

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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Here is a set of sample data 6 7 8 19 21 96 44 51 59 95 63 2228 25 52 75 97 98 14 18 40 42 57 58 77 87 Identify the 5 number summary (min, Q1, median, Q3, max)
The responses to the question “How many meals do you eat meat per month?” from a previous years yielded the following data: 0, 3, 4, 10, 10, 10, 15, 15, 16, 18, 20, 20, 20, 20, 25, 25, 27, 28, 30, 40, 40, 45, 50, 50, 55, 60, 70, 80, 83 Use 6 classes beginning with a lower class limit of 0 and class width of 14. Construct a frequency distribution table and the corresponding histogram. Do not forget the axis titles.
A credit score is used by credit agencies (such as mortgage companies and banks) to assess the creditworthiness of individuals. Values range from 300 to 850 with a credit score over 700 considered to be a quality credit risk. According to a survey, the mean credit score is 705.6. A credit analyst wondered whether high-income individuals (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 34 high-income individuals and found the sample mean credit score to be 724.4 with a standard deviation of 84.4. Conduct the appropriate test to determine if high-income individuals have higher credit scores at the α=0.05 level of significance. 1) Find: P-value 2) Make a conclusion regarding the hypothesis.
A group of 80 students took a statistics Exam in the following scores were recorded68 84 75 82 68 90 62 88 76 93 73 79 88 73 58 93 71 59 58 51 61 65 75 87 74 62 95 78 63 72 66 96 79 65 74 77 95 85 78 86 71 78 78 62 80 67 69 83 76 62 71 75 82 89 67 58 73 74 73 65 81 76 72 75 92 97 57 63 68 83 81 82 53 85 94 52 78 88 77 71 Calculate median exam score
A random sample of 25 Berkeley College students was asked, “How many hours per week typically do you work outside the home?” Their responses were as follows: {0, 0, 15, 20, 30, 40, 30, 20, 35, 35, 28, 15, 20, 25, 25, 30, 5, 10, 30, 24, 28, 30, 35, 15, 15} a. Find the mean, the median and the mode of hours worked outside the home for the sample data. Show all your work to justify your answer. b. Use the above data to complete the following table summarizing the number of hours worked outside the home. Express the relative frequency as a percent. Class Tally Frequency Relative Frequency 0-10 11-20 21-30 31-40 Total c. Find the five-number summary of the hours worked outside of the home by the 25 Berkeley College students.
The Graduate Management Admission Test (GMAT) is a test required for admission into many masters of business administration (MBA) programs. Total scores on the GMAT are normally distributed. The Graduate Management Admission Council, who administers the test, claims that the mean total score is 528. Suppose a random sample of 11 students took the test, and their scores are .given below 490 ,450 ,413,727,663,521 ,550,414,560,699 500 Does the sample evidence suggest the mean total ?score is different from at the level of significance The test statistic value, is (s = 109.6559 Consider) with 11 degrees of freedom to = 0.4922 with 10 degrees of freedom to = 0.4922 z0 = 1.6324 z0 = 0.4922
How do you know when a hypothesis test is left-tailed, right-tailed or two-tailed? How is this related to the alternative hypothesis?

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