2) You wish to test the claim that μ = 1300 at a level of significance of a = 0.10 and are given sample statistics n = x = 1270 and s = 82. Compute the value of the standardized test statistic z. Round your answer to two decimal places. You may use the P-value method or Decision rules and Rejection regions. A) z = 2.16; Reject Ho C) z = -2.16; Reject Ho B) z = 2.16; Fail to reject Ho D) z = -2.16; Fail to reject Ho 35,
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You wish to test the claim u=1300 at a level of significance of a=0.10 and are given sample statistics n=35, x=1270 and s=82. Compute the value of standardized test statistic z. Round your answer to two decimal places . You may use the P- value method or decision rules and rejection regions
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- What is meant by the sample space of an experiment?7. Listed below are measured fuel consumption amounts (in miles per gallon) for a random sample of cars. Acura Rl Acura TSX Audi A6 BMW 525i City Fuel Consumption 18 22 21 21 Highway Fuel Consumption 26 31 29 28 We are going to do a matched pairs test to see if there is sufficient evidence at the 5% significance level to support the claim that there is a difference in city and highway fuel consumption. a. Define the parameter and state the hypotheses. b. Find the observed sample statistic and the test statistic. Use proper notation for the sample statistic (x or pˆ), and clearly identify your test statistic as either a z-score or a t-score. c. Find the p-value of your test statistic. You are required to graph the test statistic on its corresponding distribution, shade the appropriate area, and provide correct calculator documentation. Box final answer. d. Make a generic decision about H0. e. Make a conclusion in the context of the problem. f. Do you have any…The U.S. Census Bureau conducts annual surveys to obtain information on the percentage of the voting-age population that is registered to vote. Suppose that 713 employed persons and 613 unemployed persons are independently and randomly selected and that 338 of the employed persons and 244 of the unemployed persons have registered to vote. Can we conclude that the percentage of employed workers ( p1 ), who have registered to vote, exceeds the percentage of unemployed workers ( p2 ), who have registered to vote? Use a significance level of α=0.1 for the test. Step 1 of 6 : State the null and alternative hypotheses for the test. Step 2 of 6 : Find the values of the two sample proportions, pˆ1p^1 and pˆ2p^2. Round your answers to three decimal places. Step 3 of 6 : Compute the weighted estimate of p, p‾p‾. Round your answer to three decimal places. Step 4 of 6 : Compute the value of the test statistic. Round your answer to two decimal places.…
- Determine the critical value(s) for a one sample hypothesis test for proportions that has a two tailed alternative hypothesis and is using =0.02.The drug Lipitor is meant to reduce cholesterol and LDL cholesterol. In clinical trials, 19 out of 863 patients taking 10 mg of Lipitor daily complained of flulike symptoms. Suppose that it is known that 1.9% patients taking competing drugs complain of flulike symptoms. (a) Determine the sample proportion of patients taking 10 mg of Lipitor daily complained of flulike symptoms. (b) Suppose that we want to know whether the evidence suggests more than 1.9% of Lipitor users experience flu-like symptoms as a side effect. Write down the null and alternative hypotheses. (c) Check whether the conditions for hypothesis testing using the P-value approach are met. (d) Determine the P-value for this hypothesis test, and draw a normal curve with area representing the P-value shaded. (e) Interpret the P-value.A manufacturer of nickel-hydrogen batteries randomly selects 100 nickel plates for test cells, cycles them a specified number of times, and determines that 14 of the plates have blistered. Does this provide compelling evidence for concluding that more than 10% ofplates blister under such circumstances?A) State H0 and Ha B) Test the hypothesis using the P-Value approach at a significance level of 4.5%, and express your decision. C) Based on the given data, determine the extreme value without rejecting the H0.
- Comfort Food Magazine states the average calories of a medium size hot dog is 209. The number of calories for a medium size hot dog is normally distributed. A random sample of 15 different brands of medium size hot dogs resulted in the following calorie count provided below. Can it be concluded that the average calories of a medium size hot dog will be 209 based on level significance of 0.01?The owner of a machine shop must decide which of two snack-vending machines to install in his shop. If each machine tested 250 times, the first machine fails to work (neither delivers the snack nor returns the money) 13 times, and the second machine fails to work 7 times, test at the 0.05 level of significance whether the difference between the corresponding sample proportions is significant.Assume that a simple random sample has been selected and test the given claim. Use the diastolic blood pressure measurements (in mm Hg) for adult females listed in the accompanying data table and test the claim that the adult female population has a mean diastolic blood pressure level less than 90 mm Hg. Suppose a diastolic blood pressure above 90 is considered to be hypertension. Use a 0.10 significance level. Based on the result, can we conclude that none of the adult females in the sample have hypertension? 719481677481565073876762726165875685696270738670646868827591617278908460788278827662637661696654677163727865856294567676567768924747656957716571726874657354588273686564865577745191578183766672638955767889647179417370457188786966737865976871646967725967545572677477407256708063736667559671638553 FIND TEST STATISTIC AND P VALUE
- Assume that a simple random sample has been selected and test the given claim. Use the diastolic blood pressure measurements (in mm Hg) for adult females listed in the accompanying data table and test the claim that the adult female population has a mean diastolic blood pressure level less than 90mm Hg. Suppose a diastolic blood pressure above 90 is considered to be hypertension. Use a 0.10 significance level. Based on the result, can we conclude that none of the adult females in the sample have hypertension? 699679657181595074886958716464885583726370728972666772837489617175928662798177847559657660666452677262717865866095577575587964914646677157726873706673647157578271726565835476745291568383786871618957777689637181437274447187806867717965976770636768756169525568677475407354697865736368549470658553 Identify the value of the test statistic. Identify the P-value.A newspaper article says that on average, college freshmen spend 7.5 hours a week going to parties. One administrator does not believe that these figures apply at her college, which has nearly 3,000 freshmen. She takes a simple random sample of 100 freshmen and interviews them. On average, they report 6.6 hours a week going to parties, and the SD is 9 hours. Carry out all the steps of performing a one-sample z test, and state your conclusionFrom the sample statistics: x1=41, n1=100; x2=35, n2=140. Find the appropriate p-value used to test the hypothesis that the population proportions are equal using a significance level of 0.05. Note: Use four decimal places.