A random sample of state gasoline taxes (in cents) is shown below for 12 states. Use thedata to estimate the true population mean gasoline tax with 90% confidence. Does yourinterval contain the national average of 44.7 cents?8.38.440.96732.5 51.5 43.43843.450.735.439.341.4

We have given that, The data set is, 38.4, 40.9, 67, 32.5, 51.5, 43.4, 38, 43.4, 50.7, 35.4, 39.3,…

Answered: andom sample of state gasoline taxes…

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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Samples of starting annual salaries for individuals entering the public accounting and financial planning professions follow. Annual salaries are shown in thousands of dollars. Public Accountant 51.2 57.8 57.3 58.2 53.2 55.0 51.9 58.5 57.0 52.9 Financial Planner 49.0 50.2 54.1 54.9 52.9 Find the value of the test statistic. W = 137.5 53.6 49.7 53.9 52.8 48.9 (a) Use a 0.05 level of significance and test the hypothesis that there is no difference between the starting annual salaries of public accountants and financial planners. State the null and alternative hypotheses. O Ho: Median salary for public accountants - Median salary for financial planners ≤ 0 H₂: Median salary for public accountants - Median salary for financial planners > 0 Ho: The two populations of salaries are identical. H₂: The two populations of salaries are not identical. O Ho: Median salary for public accountants - Median salary for financial planners 20 H₂: Median salary for public accountants - Median salary for…
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sed on data from WHO, a representative sample of 11-year-old males could consist of the following 15 values. 15.7, 16.0, 13.9, 15.3, 18.6, 14.8, 17.7, 16.6, 18.1, 19.2, 16.3, 17.3, 16.9, 25.6, 20.4 using the data calculate the 85th per
The EPA tests cars for city miles per gallon (mpg). For one model, a sample of 16 cars were tested for mpg, the results follow. 28 25.7 25.8 28 28.5 29.8 30.2 30.4 26.9 28.3 29.8 27.2 26.7 27.7 29.5 28 1) What is point estimate of the mean mpg?
The following refer to the following data set: 69.4 63.3 68.4 56.9 81.4 81.4 40.6 79.8 56 81.4 What is the arithmetic mean of this data set? mean = What is the median of this data set? median = What is the mode of this data set? mode =
9. 6. 3 3. 3. 4. 6. Find the average (mean): Find the median: I Calculator > Next Question MacBook Air F3 F4
state health web site provides information on the cost-to-charge ratio (the percentage of billed charges that are actual costs to the hospital). The cost-to-charge ratios for both inpatient and outpatient care in 2002 for a sample of six hospitals of that state follow. (Use a statistical computer package to calculate the P-value. Use ?inpatient − ?outpatient. Round your test statistic to two decimal places and your P-value to three decimal places.) Hospital 2002InpatientRatio 2002OutpatientRatio 1 86 78 2 77 58 3 99 77 4 65 57 5 65 50 6 104 69 t = df = P-value = Is there sufficient evidence to suggest that the mean difference cost-to-charge ratio for the state's hospitals is lower for outpatient care than for inpatient care? Use a significance level of 0.05. Yes OR No
n the 1992 presidential election, Alaska's 40 election districts averaged 2111 votes per district for President Clinton. The standard deviation was 551. (There are only 40 election districts in Alaska.) The distribution of the votes per district for President Clinton was bell-shaped. Let X = number of votes for President Clinton for an election district. (Source: The World Almanac and Book of Facts) Round all answers except part e. to 4 decimal places.a. What is the distribution of X? X ~ N(,)b. Is 2111 a population mean or a sample mean? Select an answer Population Mean Sample Mean c. Find the probability that a randomly selected district had fewer than 2134 votes for President Clinton. d. Find the probability that a randomly selected district had between 2048 and 2241 votes for President Clinton. e. Find the first quartile for votes for President Clinton. Round your answer to the nearest whole number.
3. Using the two tables of output below, write three summary statements in APA format. Be sure you report results such as Mean and SD in proper APA format. Coffee refers to the amount of money spent on coffee in the previous week, soda refers to the amount of money spent on soda in the previous week, and sleep refers to the average daily number of hours spent sleeping in the previous week. Descriptive Statistics Mean Std. Deviation coffee 7.5500 9.62166 20 soda 6.1000 6.79706 20 sleep 7.2625 1.38001 20
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andom sample of state gasoline taxes (in cents) is shown below for 12 states. Use the a to estimate the true population mean gasoline tax with 90% confidence. Does your rval contain the national average of 44.7 cents? 40.9 67 32.5 51.5 43.4 38 43.4 50.7 35.4 39.3 41.4