Important: This question continues from the previous three question and onto the following question.According to Time magazine, 18% of adult Americans suffer from an anxiety disorder. Suppose a test of300 random college students showed that 50 suffered from an anxiety disorder. Suppose a researcherwanted to show that the population proportion of college students suffering from an anxiety disorder isless than 0.18 at a significance level of a 0.05.%3DCalculate the p-value for this hypothesis test.• Rounding to 3 decimal places.On your scratch paper:• write down what was entered into your calculator (both the function and the input values)• number your scratch work with this question number

From the given information we conduct z test for Proportion.

Answered: Important: This question continues from…

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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What is the P-value for the following scenario? A survey of 280 women 18-24 years old in 2000 found that 42.5% lived with their parents, while a similar survey of 270 women in 2012 found that 47.8% lived with their parents. Is there enough evidence to conclude that the proportion of women living with their parents was greater in 2012? Use a 5% significance level. As in Chapter 7, answers need to be correct to three decimal places beyond the first non-zero digit.
Answer the following to summarize the test of the hypothesis that each of A, B, C, and D is equally likely to be the correct answer on tests in these introductory college courses. Use the 0.05 level of significance for the test. (a) Determine the type of test statistic to use. Type of test statistic: ▼(Choose one) (b) Find the value of the test statistic. (Round your answer to two or more decimal places.) (c) Find the critical value. (Round your answer to two or more decimal places.) (d)Can we reject the hypothesis that A, B, C, and D are equally likely to be the correct answer on tests in these introductory college courses? Yes No
What is the p-value?
A random sample of 37 MBAs working in New York revealed that their mean annual salary was $132,000. Suppose that the population standard deviation o is $31,000 but that the population mean μ is unknown. What is the point estimate (i.e. the "best guess") of the mean salary μ of all MBAs in this city? O $99,000 O $132,000 O $116,000 O $31,000
A police department released the numbers of calls for the different days of the week during the month of October, as shown in the table to the right. Use a 0.01 significance level to test the claim that the different days of the week have the same frequencies of police calls. What is the fundamental error with this analysis? a. Calculate the test statistic, chi squared .chi squared equals (Round to three decimal places as needed.) b. Calculate the P-value. P-valueequals (Round to four decimal places as needed.)
16% of all Americans suffer from sleep apnea. A researcher suspects that a different percentage of those who live in the inner city have sleep apnea. Of the 337 people from the inner city surveyed, 47 of them suffered from sleep apnea. What can be concluded at the level of significance of α= 0.05? a. The test statistic= (please show your answer to 3 decimal places.) b. The p-value = (Please show your answer to 4 decimal places.)
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Our professor wants us to calculate the test statistic and p-value by hand. The test statistic is correct. I can't get the p-value to save my life. Do you know what I am doing wrong?? (All of these p-value answers are incorrect: 0.25, .1230, 2.32, .0232, .02, and .01) An article published in the Washington Post claims that 45 percent of all Americans have brown eyes. A random sample of ?=78 college students found 30 who had brown eyes.Consider testing ?0:?=.45??:?≠.45 (a) The test statistic is ? = -1.16 (b) P-value =
Sarah thinks that she has lost interest in online shopping. Based on her shopping history, she can see that her average purchases in the past were about 4 items on average each week. Since this last month, she can now see that she has only purchased 2 items on average each week, (with a SD of 1). To determine whether her shopping habits have changed, what statistical test should be used here?
[13] How does p-value relate to null hypothesis? a. Reference for making decisions about the null hypothesis b. Illustrates how bad the null hypothesis was crafted c. Provides a scale to check the validity of the null hypothesis d. All of the above
Your medical research team is investigating the mean cost of a 30-day supply of a certain heart medication. A pharmaceutical company thinks that the mean cost is less than $53. You want to support this claim. How would you write the null and alternative hypotheses? Ho I Ha COLOS Clear all Check answer

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