A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 25%. If a random sample of 255 students at this college is selected, and it is found that 80 commute more than fifteen miles to school, can we reject the college's claim at the 0.05 level of significance? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) (a) State the null hypothesis H and the alternative hypothesis H,. H, :0 H :0 (b) Determine the type of test statistic to use. (Choose one) ▼ O=0 OSO (c) Find the value of the test statistic. (Round to three or more decimal places.) O

A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 25%. If a random sample of 255 students at this college is selected, and it is found that 80 commute more than fifteen miles to school, can we reject the college's claim at the 0.05 level of significance? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) (a) State the null hypothesis H and the alternative hypothesis H,. H, :0 H :0 (b) Determine the type of test statistic to use. (Choose one) ▼ O=0 OSO (c) Find the value of the test statistic. (Round to three or more decimal places.) O

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. Họ: p= 0.85 versus H,: p#0.85 n= 500, x = 420, a = 0.01 Is npo (1- Po) 2 10? Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) A. Yes, because npo (1- Po) = O B. No, because npo (1-Po
Find the P-value
Part C, D and E please, Thank You! D) What is the null hypothesis? E) Reject the null hypothesis because the P-value is greater than the significant level, a Reject the null hypthosesis because the P-value is less than or equal to the significant level, a Fail to reject the null hypothesis because the P-value is greater than or equal to the significant level, a Fail to reject the null hypothesis because the P-Value is greater than the significant level, a
What is the value of the test statistic?A) 1.85B) 3.704C) 2.39D) 4.100E) 2.556
A researcher is interested in whether people are more or less likely to enjoy popcorn when they are watching TV versus watching a movie. The researcher recruits 12 participants and randomly assigns them to eat popcorn either while watching T or while watching a movie. Then, the researcher measures now much each participant enjoyed the popcorn on a scale from 1 to 10. The researchers' results are shown below: Using the appropriate hypothesis test and the six steps of hypothesis testing, see what the researcher should conclude about the effect of watching television versus watching a movie on people's enjoyment of popcorn. Construct a sampling distribution of means representing the null hypothesis. Specify the sampling distribution's mean and standard error 5. Using a two-tailed alpha of .05 (a = .05), determine the critical values 6. Calculate the test statistic 7. State whether you reject or fail to reject the null hypothesis 8. Calculate and report a measure of effect size . 9. Based…
Are avid readers more likely to wear glasses than those who read less frequently?Three-hundred people in Ohio were selected at random and characterized as to whetherthey wore glasses and whether the amount of reading they did was above average,average, or below average. The results are presented in the following table.Answer with a step by step solution. :)
Styles Font Paragraph Hypothesis Testing for College Tuition Cost D) Calculate the mean and standard deviation of your data set. You may use technology such as Google Sheets, Excel, or a TI-83/TI-84. Round to the nearest hundredth. In this assignment, you will be using inferential statistics to determine if a claim about college tuition cost is accurate. Standard Deviation According to the College Boarď's website, the average tuition cost per year for a public four- year college (in-state cost) is $10,230. Mean & A) Assume that you disagree with the claim. Do you think the average tuition cost is higher? Or lower? E) Using a significance level a = 0.05, find the critical value using the following steps. 1. What are the degrees of freedom? B) Using your answer in part A, write a set of hypotheses (null hypothesis and alternative hypothesis) to represent that claim and its complement. Replace the ?s below with the appropriate inequality signs (,2). Highlight the hypothesis that…
In a recent study of a random sample of 113 people, 92 reported dreaming in color. In the 1940’s, the proportion of people who reported dreaming in color was 29%. Is there evidence to show that the proportion of people who dream in color is different than the proportion in the 1940’s? What is the p-value for this hypothesis test? A) 6.04 x 10-35 B) 0.8142 C) 0.4071 D) 1.21 X 10-34 E) 12.279
Colder? We used the formula °F = 9>5°C + 32 to con-vert Celsius to Fahrenheit in Chapter 5. Let’s put it to use in a random variable setting.a) Suppose your town has a mean January temperature of11°C. What is the mean temperature in °F?b) Fortunately your local weatherman has recently takena statistics course and is keen to show off his newfound knowledge. He reports that January has a standard de-viation of 6°C. What is the standard deviation in °F?
A and b pls
Is achieving a basic skill level related to the location (a) through (d). Subject Location Reading Math Science 45 the school? The results of a random sample of students by the location of school and the number of students achieving basic skill levels in three subjects is shown in the contingency table. At a = 0.10, test the hypothesis that the variables are independent. Complete parts Urban 41 36 Suburban 60 67 58 (a) Identify the claim and state the null and alternative hypotheses. Ha: Skill level in a subject is location H.: Skill level in a subject is location The V is the claim. (b) Determine the degrees of freedom, find the critical value, and identify the rejection region. What are the degrees of freedom? d.f. = Find the critical value. (Round to three decimal places as needed.) Choose the correct rejection region below. O A. x3 (c) Calculate the test statistic. If convenient, use technology. (Round to three decimal places as needed.) (d) Decide to reject or fail to reject the…
Laura spends an average of 1.5 hours doing herhomework. After organizing her desk, Laura thinks shewill spend less time doing her homework. She wants tothe test that claim.a) State the null hypothesis.b) State the alternative hypothesis how do I do this problem