The number of false alarms were counted each month at a number of sites. Test the hypothesis that falsealarms are equally likely to occur in any month at the 1% significance.Round to the fourth as needed.ExpectedFrequency FrequencyObservedCategoriesJan38Feb29Mar39Apr30Мay15JunJul16Aug39Sep35Oct26Nov32Dec20Test Statistic:Degrees of Freedom:p-val:Decision Rule: Select an answerDid something significant happen? Select an answerThere Select an answer v enough evidence to concludeSelect an answer20

The number of false alarms were counted each month at a number of sites. Test the hypothesis that false alarms are equally likely to occur in any month at the 1% significance. Round to the fourth as needed. Observed Expected Frequency Frequency Categories Jan 38 Feb 29 Mar 39 Apr 30 Мay 15 Jun 20 Jul 16 Aug 39 Sep 35 Oct 26 Nov 32 Dec 20 Test Statistic: Degrees of Freedom: p-val: Decision Rule: Select an answer Did something significant happen? Select an answer There Select an answer v enough evidence to conclude Select an answer

The number of false alarms were counted each month at a number of sites. Test the hypothesis that false alarms are equally likely to occur in any month at the 1% significance. Round to the fourth as needed. Observed Expected Frequency Frequency Categories Jan 38 Feb 29 Mar 39 Apr 30 Мay 15 Jun 20 Jul 16 Aug 39 Sep 35 Oct 26 Nov 32 Dec 20 Test Statistic: Degrees of Freedom: p-val: Decision Rule: Select an answer Did something significant happen? Select an answer There Select an answer v enough evidence to conclude Select an answer

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Determine the following: • Claim • Computation • Decision (Reject Ho or failed to reject Ho) • Conclusion
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13 5%, 1 of 57 pts A college entrance exam company determined that a score of 21 on the mathematics portion of the exam suggests that a student is ready for college-level mathematics. To achieve this goal, the company recommends that students take a core curriculum of math courses in high school. Suppose a random sample of 150 students who completed this core set of courses results in a mean math score of 21.4 on the college entrance exam with a standard deviation of 3.2. Do these results suggest that students who complete the core curriculum are ready for college-level mathematics? That is, are they scoring above 21 on the math portion of the exam? Complete parts a) through d) below. Question Help ▼ Click the icon to view the table of critical t-values. a) State the appropriate null and alternative hypotheses. Fill in the correct answers below. The appropriate null and alternative hypotheses are Ho: versus H,: Enter your answer in the edit fields and then click Check Answer. parts 4…
a goodness of fit test was run to determine if a sample of data was normally distributd. th theoretcal distributiones showed a posibility of 17 expecteed values. at the .05 level the approprotae table statistics is : 22.36, 26.29, 24.99, 23.89
calculate ss variance and standard deviation for the following population of N=5 scores: 2,13,4,10,6
Unoccupied seats on flights cause avrlines to lose revenue. As an intern in the finance department for Golden Ticket Airlines, Carlos is tasked with estimating the average number of unoccupied seats per flight over the past year. To accomplish this, the records of 222 flights are randomly selected and the number of unoccupied seats is noted for each of the sampled flights. The sample mean is 18 seats and the standard deviation is 2.5 seats. Construct a 80% confidence interval for the population mean number of unoccupied seats per flight during the past year. If necessary, round results to 1 decimal places.
When a computer disk manufacturer tests a disk, it writes to the disk and then test tests it usıng a certifier. The certifier counts the number of missing pulses or errors. The number of erors on a test area on a disk has a Poisson distribution with a mean 2 = 2 What is the expected number of error per test area? a. 4 O b. 20 Oc. 1.41 O d. 2
esc A chain of restaurants has historically had a mean wait time of 9 minutes for its customers. Recently, the restaurant added several very popular dishes back to their menu. Due to this, the manager suspects the wait time, μ, has increased. He takes a random sample of 44 customers. The mean wait time for the sample is 9.6 minutes. Assume the population standard deviation for the wait times is known to be 3.3 minutes. Can the manager conclude that the mean wait time is now greater than 9 minutes? Perform a hypothesis test, using the 0.05 level of significance. (a) State the null hypothesis Ho and the alternative hypothesis H₁. Ho: D H₁: 0 (b) Perform a Z-test and find the p-value. Here is some information to help you with your Z-test. • The value of the test statistic is given by Standard Normal Distribution Step 1: Select one-tailed or two-tailed.. O One-tailed O Two-tailed Explanation H Check OO MacBook Pro Español ? CÙ D 19 As Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of…
The dataset "nurses" is a random sample of 1,000 cases from “Health Care Provider Credential Data” from Washington State Open Data Portal. In the sample, there are 418 CNA's and 278 of the CNA's have expired credentials. Use the statistics from the nurses dataset to answer the following question: "With 90% confidence, what percent of all CNA's on Washington State's healthcare provider list are expired?"
what is the expected frequency for this data? n total =13