The board of a major credit card company requires that the mean wait time for customers when they call customer service is at most 5.00 minutes. To make sure that the mean wait time is not exceeding the requirement, an assistant manager tracks the wait times of 51 randomly selected calls. The mean wait time was calculated to be 5.42 minutes. Assuming the population standard deviation is 1.95 minutes, is there sufficient evidence to say that the mean wait time for customers is longer than 5.00 minutes with a 90 % level of confidence? Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. Answer Ho: μ = 5.00 Ha P 0 # 5.00 Keypad Keyboard Shortcu Tables

The board of a major credit card company requires that the mean wait time for customers when they call customer service is at most 5.00 minutes. To make sure that the mean wait time is not exceeding the requirement, an assistant manager tracks the wait times of 51 randomly selected calls. The mean wait time was calculated to be 5.42 minutes. Assuming the population standard deviation is 1.95 minutes, is there sufficient evidence to say that the mean wait time for customers is longer than 5.00 minutes with a 90 % level of confidence? Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. Answer Ho: μ = 5.00 Ha P 0 # 5.00 Keypad Keyboard Shortcu Tables

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

please answer d, e, f
Activity1: Formulate the null and alternative hypotheses. Identify whether it is one-tailed or two tailed. If the hypothesis is one-tailed, identify its direction whether left or right. Write your answer on a separate sheet of paper. Note: You need to provide 3 answers (null hypothesis, alternative hypothesis, and ___-tailed test) for each question.
Solve number 2
You are conducting a multinomial hypothesis test (α = 0.05) for the claim that all 5 categories are equally likely to be selected. Complete the table. Category ObservedFrequency ExpectedFrequency A 18 ? B 13 ? C 20 ? D 22 ? E 18 ? Report all answers accurate to three decimal places. But retain unrounded numbers for future calculations.What is the chi-square test-statistic for this data? (Report answer accurate to three decimal places, and remember to use the unrounded Pearson residuals in your calculations.)χ2= What are the degrees of freedom for this test?d.f.= What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail to reject the null accept the alternative As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that all 5…
Imagine you are doing a Related-Samples t-test, and you are on Step Three of the hypothesis test. The sample of difference scores that you calculated is -5, -6, +2, -2, 0. What is the correct t-obtained? NOTE: The answer options also show many numbers that you calculate as part of the WORK for getting the t-obtained. VERY IMPORTANT HINT: The SS of these difference scores is 44.80.
section 10.3 Step 1 of 3 : State the null and alternative hypotheses for the test. Fill in the blank below. Step 2 of 3 : Compute the value of the test statistic. Round your answer to three decimal places. Step 3 of 3: Do we reject the null hypothesis? Is there sufficient or insufficient data?
Question #1
#14 Thanks
• Question 16 A news article that you read stated that 53% of voters prefer the Democratic candidate. You think that the actual percent is different. 122 of the 272 voters that you surveyed said that they prefer the Democratic candidate. What can be concluded at the 0.10 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ?v| Select an answerv (please enter a decimal) H1: |?vSeect an answerV (Please enter a decimal) 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 ?v a f. Based on this, we should Select an answerv the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the population proportion is not significantly different 53% at a = 0.10, so there is not sufficient evidence to conclude that the proportion of voters who prefer the Democratic candidate is different 53%. O The data…
Subject : Statestic
Several recent studies have suggested that people who suffer from abnormally high blood pressure can benefit from regular exercise. She conducts a small sample of 3 random patients with high blood pressure and measures blood pressure before and after the exercise program. Subject Before After 1 155 133 2 160 140 3 145 120 Conduct a test to see if the claim is supportive. State the hypotheses from the previous problem. (high blood pressure problem)
Hello, may I get please help with the following? All the questions are provided in the images. Question 1 has the same answer choices for all the boxes. An explanation leading to the CORRECT answers would be helpful please! Thank you!