(d) Repeat the preceding hypothesis test using the critical value approach.State the null and alternative hypotheses. (Enter != for # as needed.)Ho:H3:Find the value of the test statistic. (Round your answer to three decimal places.)State the critical values for the rejection rule. Use a = 0.05. (Round your answers to three decimal places. If the test is one-tailed, enter NONE for the unused tail.)test statistic stest statistic 2 On its municipal website, the city of Tulsa states that the rate it charges per 5 CCF of residential water is $21.62. How do the residential water rates of other U.S. public utilities compare toTulsa's rate? The data shown below ($) contains the rate per 5 CCF of residential water for 42 randomly selected U.S. cities.10.489.1811.86.512.4214.5315.5610.1214.516.1817.619.1817.9812.8516.817.3515.6414.818.9117.9914.918.4216.0526.8522.3222.7620.9823.4519.0523.719.2623.7527.827.0527.1426.9924.6837.8626.5139.0129.4641.65(a) Formulate hypotheses that can be used to determine whether the population mean rate per 5 CCF of residential water charged by U.S. public utilities differs from the $21.62 ratecharged by Tulsa. (Enter != for * as needed.)Ho:= 21.62!= 21.62(b) What is the test statistic for your hypothesis test in part (a)? (Round your answer to three decimal places.)1.148What is the p-value for your hypothesis test in part (a)? (Round your answer to four decimal places.)0.2576

(d) Repeat the preceding hypothesis test using the critical value approach. State the null and alternative hypotheses. (Enter != for = as needed.) Ho: Find the value of the test statistic. (Round your answer to three decimal places.) State the critical values for the rejection rule. Use a = 0.05. (Round your answers to three decimal places. If the test is one-tailed, enter NONE for the unused tail.) test statistic s test statistic 2

(d) Repeat the preceding hypothesis test using the critical value approach. State the null and alternative hypotheses. (Enter != for = as needed.) Ho: Find the value of the test statistic. (Round your answer to three decimal places.) State the critical values for the rejection rule. Use a = 0.05. (Round your answers to three decimal places. If the test is one-tailed, enter NONE for the unused tail.) test statistic s test statistic 2

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

← N 6 F2 ew an example Get more help. X 3 The display provided from technology available below results from using data for a smartphone carrier's data speeds at airports to test the claim that they are from a population having a mean less than 5.00 Mbps. Conduct the hypothesis test using these results. Use a 0.05 significance level. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. Click the icon to view the display from technology. Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? OA. Ho: 5.00 Mbps 8 M DII FB 1 K Print ( 9 H T-Test H<5.00 t= -0.288047 p=0.387332 x=4.78 Sx=5.123487 n=45 < I 6 F9 O L command Done ) O F10 P : ; I option F11 { [ ? 1 + = 11 - X I Check answer F12 } ] delete return shift
An education researcher claims that 57% of college students work year-round. In a random sample of 600 college students, 342 say they work year-round. At a = 0.05, is there enough evidence to reject the researcher's claim? Complete parts (a) through (e) below. (a) Identify the claim and state Ho and H3. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) OA. % of college students work year-round. O B. At most % of college students work year-round. O C. The percentage of college students who work year-round is not O D. At least % of college students work year-round. Let p be the population proportion of successes, where a success is a college student who works year-round. State H, and Ha. Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) O A. Ho: p> O B. Ho: ps O C. Ho: p= Ha: ps Hại p> H3:p = O D.…
Suppose that you want to perform a hypothesis test for a population mean. Assume that the population standard deviation is unknown and that the sample size is relatively small. In each exercise, we have given the distribution shape of the variable under consideration. Decide whether you would use the t-test, the Wilcoxon signed-rank test, or neither. Explain your answers. Reverse J Shaped
This question asks you to extend the medical-test example from class. Suppose there is a medical condition that afflicts 20% of the population. There is a test for this condition, and the reliability of this test can be characterized as follows: false-positive rate = 10%- for those who do not have the condition, 10% will test positive. • false-negative rate 5%- for those who have the condition, 5% will test neg- %3D ative, (a) If you receive a positive test result, what is the likelihood that you have the condition? If you receive a negative test result, what is the likelihood that you do not have the condition? (b) Repeat part (a), except now assume that the false-positive rate is 5% and the false-negative rate is 10%,
For the situation described below, state the null hypothesis, Ho, and the alternative hypothesis, H,, to be tested. (Enter != for + as needed.) A statistical test is designed to show that the mean u is different from 150. Hoi Need Help? Read It
In each of Exercises, suppose that you want to perform a hypothesis test for a population mean. Assume that the population standard deviation is unknown and that the sample size is relatively small. In each exercise, we have given the distribution shape of the variable under consideration. Decide whether you would use the t- test, the Wilcoxon signedrank test, or neither. Explain your answers. Triangular
K Describe type I and type II errors for a hypothesis test of the indicated claim. A furniture store claims that at least 75% of its new customers will return to buy their next piece of furniture. Describe the type I error. Choose the correct answer below. OA. A type I error will occur when the actual proportion of new customers who return piece furniture is no more than 0.75, but you reject Ho: ps 0.75. OB. A type I error will occur when the actual proportion of new customers who return. piece of furniture is at least 0.75, but you reject Ho: p20.75. buy their next buy their next OC. A type I error will occur when the actual proportion of new customers who return to buy their next piece furniture is at least 0.75, but you fail to reject Ho: p20.75. OD. A type I error will occur when the actual proportion of new customers who return buy their next piece of furniture is no more than 0.75, but you fail to reject Ho: p≤0.75. Describe the type Il error. Choose the correct answer below. OA.…
Suppose are running a study/poll about the proportion of women over 40 who regularly have mammograms. You randomly sample 138 people and find that 91 of them match the condition you are testing.Suppose you are have the following null and alternative hypotheses for a test you are running:H0:p=0.67Ha:p>0.67Calculate the test statistic, rounded to 3 decimal places z=
Please just solve B-1 In order to conduct a hypothesis test for the population mean, a random sample of 14 observations is drawn from a normally distributed population. The resulting sample mean and sample standard deviation are calculated as 14.6 and 2.0, respectively. (You may find it useful to reference the appropriate table: z table or t table). H0: μ ≤ 13.8 against HA: μ > 13.8 a-1. Calculate the value of the test statistic. (Round all intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.) a-2. Find the p-value. multiple choice 1 p-value 0.10 p-value < 0.01 0.05 p-value < 0.10 Correct 0.025 p-value < 0.05 0.01 p-value < 0.025 a-3. At the 10% significance level, what is the conclusion? multiple choice 2 Reject H0 since the p-value is less than significance level. Correct Reject H0 since the p-value is greater than significance level. Do not reject…
Let p denote the population proportion of all buttered toast that will land with the buttered side down when dropped. Identify the null and alternative hypotheses to test the claim that buttered toast will land with the buttered side down 50% of the time. Ho p = H₁p 0.5 0.5 (Type integers or decimals. Do not round.) Identify the test statistic. z = -1.81 (Round to two decimal places as needed.) Identify the P-value. P-value = 0.070 (Round to three decimal places as needed.) State the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Fail to reject the null hypothesis. There is not sufficient evidence to warrant rejection of the claim that buttered toast will land with the buttered side down 50% of the time. Write a conclusion that addresses the test that the toast will land with the buttered side down more than 50% of the time. The intent of the experiment was to test Ho: p = down more than 50% of the time. 0.5 and H₁: p > 0.5.…
In each of Exercises, suppose that you want to perform a hypothesis test for a population mean. Assume that the population standard deviation is unknown and that the sample size is relatively small. In each exercise, we have given the distribution shape of the variable under consideration. Decide whether you would use the t- test, the Wilcoxon signedrank test, or neither. Explain your answers. Reverse J shaped
Suppose are running a study/poll about the proportion of women over 40 who regularly have mammograms. You randomly sample 117 people and find that 92 of them match the condition you are testing.Suppose you are have the following null and alternative hypotheses for a test you are running:H0:p=0.83Ha:p<0.83Calculate the test statistic, rounded to 3 decimal places z=z=