The US Department of Energy reported that 46% of homes were heated by natural gas. A random sample of325 homes in Oregon found that 126 were heated by natural gas. Test the claim that proportion of homesin Oregon that were heated by natural gas is different than what was reported. Use a 1% significancelevel. Give answer to at least 4 decimal places.What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.)Ho: Select an answervH4: Select an answer v? vBased on the hypotheses, compute the following:Test Statistic =p-value =Based on the above we choose to Select an answerThe correct summary would be: Select an answerhomes in Oregon that were heated by natural gas is different than what the DOE reported value of 46%.that the proportion of

Answered: Image /qna-images/answer/f7512b8c-2c81-4280-b2fe-e63190e9ca18.jpg

Answered: The US Department of Energy reported…

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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From the set of numbers 10,17,19,20,22 The mean is 17.6 Median is 19 Mode is no mode. make 1st, 2nd, and 3rd quartiles, then sketch a box and whisper plot.
A poll in Canada states that 67% of all respondents favor imposing the death penalty. The poll was considered accurate within 4.7 percentage points 95% of the time. How large was the sample size? Round up to the nearest whole number.
what is the median for parents?
The average house has 15 paintings on its walls. Is the mean larger for houses owned by teachers? The data show the results of a survey of 16 teachers who were asked how many paintings they have in their houses. Assume that the distribution of the population is normal. 18, 15, 17, 14, 16, 17, 18, 15, 15, 14, 14, 14, 15, 15, 16, 18 What can be concluded at the a = 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Но: Select an answer v H1: Select an answer v c. The test statistic ? v = (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? va f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the population mean is not significantly more than 15 at a = 0.05, so there is sufficient evidence to conclude that the population mean number of paintings that are in…
What is one indication that there are paired samples in a data set? Choose the correct answer below. O A. Knowing the value that a subject has in one group gives one no information about the value in the second group. OB. Each observation in one group is coupled with one particular observation in the other group. OC. The researcher is comparing two populations. O D. The researcher is working with two distinct groups in the data set.
A researcher wanted to test whether there is a relationship between preferred sweet (Oreo cookies, Mars bars, or Twinkies) and age group (children, adolescents, or young adults). To test that, subjects from the three age groups were asked which of the three sweets they preferred. Which statistical test should be used to analyze the data? 1. chi square test of independece 2. chi square test for goodness of fit 3. one sample t test 4. one way anova test
If Ashley wants to test for GPA differences among first-, second-, third-, and fourth-year college students, which of these difference tests should she use? A. chi-square test of independence B. between-subjects, two-way ANOVA C. between-subjects, one-way ANOVA D. repeated-measures ANOVA
please complete the blank problem and or ones with a red x next to it not ones with a green check next to please
Consider the relationship between p-values and significance levels. a. Explain why a value of z-statistic that is significant at the 1% level in a one-sided test is always significant at the 5% level. b. Explain why the reverse is not true. If something is significant at the 5% level in a one-sided test it is not necessarily significant at the 1% level.
How many sources of between-group variation are measured in a two-way between-subjects ANOVA? Group of answer choices a. 4 b. 2 c. 3 d. 5
2. In the past, approximately 24% of workers said they brought work home with them, at least occasionally. Recently, in a random sample of 400 employed people, 104 said that they bring work home with them, at least occasionally. a. Test whether the true proportion of all employees who bring work home with them has changed from 24%. Use the 5% level of significance.

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