A news article that you read stated that 59% of voters prefer the Democratic candidate. You think that theactual percent is smaller. 131 of the 247 voters that you surveyed said that they prefer the Democraticcandidate. What can be concluded at the 0.01 level of significance? b. The null and alternative hypotheses would be:Ho: ?- Select an answerv(please enter a decimal)H1: ? Select 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.)

Name: A news article that you read stated that 59% of voters prefer the Dem
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Description: A news article that you read stated that 59% of voters prefer the Democratic candidate. You think that theactual percent is smaller. 131 of the 247 voters that you surveyed said that they prefer the Democraticcandidate. What can be concluded at the

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Statistics

b. The null and alternative hypotheses would be: Ho: ?v Select an answerv (please enter a decimal) H1: ?- Select an answer (Please enter a decimal) c. The test statistic ?v = (please show your answer to 3 decimal places.) d The R value. (Dleace chow vour ancuNer to 4 decimal placec

b. The null and alternative hypotheses would be: Ho: ?v Select an answerv (please enter a decimal) H1: ?- Select an answer (Please enter a decimal) c. The test statistic ?v = (please show your answer to 3 decimal places.) d The R value. (Dleace chow vour ancuNer to 4 decimal placec

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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The values listed below are waiting times (in minutes) of customers at two different banks. At Bank A, customers enter a single waiting line that feeds three teller windows. At Bank B, customers may enter any one of three different lines that have formed at three teller windows. Answer the following questions. Bank A 6.4 6.6 6.7 6.8 7.1 7.3 7.5 7.7 7.7 7.7 Bank B 4.2 5.5 5.7 6.2 6.7 7.8 7.8 8.5 9.3 10.0 Click the icon to view the table of Chi-Square critical values. Construct a 95% confidence interval for the population standard deviation o at Bank A. min< OBank A min (Round two decimal places as needed.) Construct a 95% confidence interval for the population standard deviation o at Bank B. min < OBank B < min (Round to two decimal places as needed.) Interpret the results found in the previous parts. Do the confidence intervals suggest a difference in the variation among waiting times? Does the single-line system or the multiple-line system seem to be a better arrangement? O A. The…
B₁ is an estimator of B₁ a. True O b. False
20 high school Spanish teachers attended an summer course to improve their listening skills. They took the MLA listening test both before and after the course. Before the course they had a mean of 27.3 with s=8.04. After the course they had a mean of 28.75 with s=2.74. We want to know if the course improves scores. A.) State an appropriate Ho and Ha. B.) Carry out a test. Can you reject at the 5% significance level? at the 1% level?
Answer number 5
Pls solve both questions with details explanation and no plagiarism , for good rating
Determine which statistic you would use. 1. A psychologist studied if cognitive intelligence was associated with emotional intelligence in50 people. Cognitive intelligence was measured by averaging each person’s scores on tests ofvocabulary and visual problem solving. Emotional intelligence was measured by theparticipant’s score for accurately describing the moment-by-moment emotional reactionsof three people in a filmed interaction 2. A psychologist is interested in whether exercise increases the intensity of REM sleep in adults in three age groups (younger, middle age, older) She obtains 40 people in each age group and randomly assigns half of them to daily exercise or not in a 2 (exercise vs. not) X 3 (age group) design • REM sleep is measured by rating the vividness of dreams recorded in daily dream diaries collected for one week– Bland dreams = 1; very vivid dreams = 5 3. A psychologist believes physical experiences influence perception, such that a hill will appear steeper if…
Need help with parts C & D The proportion of Americans who have frequent migraines is 15.2% according to the CDC. An acupuncturist claims that her treatment can reduce this figure significantly. A random sample of 191 Americans is administered the acupuncturists treatment and 25 report experiencing migraines.a. State Hypotheses to the scenario using the correct symbols. b. What is the sample proportion? (Round to 2 decimal places) ˆpp^= c. Suppose the P-value is calculated to be 0.0318What would your decision be for this test using α=α= 0.025? fail to reject the null accept the null reject the null d. Write a conclusion in terms of the acupuncturist's claim. Use the model provided by the instructor. Assume no errors were made.
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n, where k is the percentile and n is the sample size. Given a sorted sample of 234 IQ scores, what is the value of the 40th percentile? 100 When finding the value of a percentile, the location of that value is L = Choose the correct answer below. O A. The 93rd IQ score in the sorted list O B. The 40th IQ score in the sorted list. O C. The 94th IQ score in the sorted list O D. The IQ score midway between the 40th and 41st scores in the sorted list.
-20 Which of the following statements is not true? Select one: put of O a. All of the above uestion O b. Measures'of central tendency are numbers that describe typical values in the data. O c. The mean is the most widely used measure of location. d. The coefficientrof variation is the least used measure of central tendency. Next