E 3 of 12 QuestionsCompleted 7 out of 12ResourcesSubmit AllPress esc to exit full screen1 QuestionQuestion 3 of 12>An analyst at a state's environmental quality commission has just finished processing salt concentration tests on 60 wells in2 QuestionWashington County to represent the more than 1,000 wells across the state. Water with salinity concentration less than 0.05% isconsidered fresh.3 Question0.03 on this sample of wells to determine if theoverall salt concentration of the state's water supply exceeds 0.05%. The shape of the sample data is approximately symmetricThe analyst decides to run a one-sample t test at a significance level of a =4 Questionwith no outliers, and its statistics are5 Questionx = 0.048%Sx =:0.0366%6 QuestionP-value:0.01667 Questionwhere x is the sample mean, sz is the sample standard deviation, and the P-value is the probability that results from the t test.The analyst decides that there is enough evidence to conclude that the mean water salinity level exceeds 0.05%. Is this decisionvalid? To answer this question, complete the following sentence.8 Question9 QuestionThe conclusion isinvalid , because10 Questionall of the conditions for inference have been met11 Questionthe Normal/Large Counts condition is not metthe Random condition is not met12 Question

Given that We have to find the conclusion

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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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Please help correct a,c, and d. Thanks
The American Water Works Association reports that, On average,water use in households is more than 10 gallons per day. But under the conditions of pandemic like this is suspected to be a change to water consumption in households.A researcher surveyed and sampled 12 household heads and was asked about the use of gallon water. As for the data obtained are as follows 51, 8, 13, 17, 13, 15, 12, 13, 15, 16, 9, 7. If it is known that the data is distributed normal. Use a significance level of 5% test whether the average household water use is increasing (greater than 10 gallons)? What will happen if water use in these households increases 5% from before?
The American Water Works Association reports that, The average household water usage is more than 10 gallons per day. However, in a pandemic like this, it is suspected that there is a change in household water consumption. A researcher conducted a survey and took samples of 12 household heads and asked about the use of the gallon water. The data obtained are as follows: 74, 8, 13, 17, 13, 15, 12, 13, 15, 16, 9, 7. If it is known that the data is normally distributed. Use a significance level of 5% to test whether the average household water use has increased (greater than 10 gallons)? What will happen if the household's water use increases by 5% from the previous one? Analyze your answer and come up with a conclusion!
The Following are Data for Systolic Blood Pressures, in mm of Mercury, of 12 Chimpanzees. 121, 125, 128, 134, 136, 138, 139, 141,144, 145, 149, 151 Based on this sample, do chimps have higher systolic blood pressure than humans, their closest relatives? Make sure you state the statistical hypotheses and conclusions, as well as the biological conclusions.
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The Us food and Drug administration has a limit for mercury content in fish of 1.0ppm (parts per million) while in Canada the limit is 0.5 ppm. Using the variable average mercury in the Florida lakes dataset to test whether there is evidence that average mercury level of fish ( large mouth Bass) in Florida lakes is less than 1.0ppm and whether there is evidence that average mercury level of fish in Florida lakes is less than 0.5ppm. STATE THE NULL AND ALTERNATIVE HYPOTHESES? GIVE THE TEST STATISTICS AND P-VALUE? round the test statistic to two decimal places and the p-value to three decimal places. DOES THIS SAMPLE PROVIDE EVIDENCE THAT THE AVERAGE MERCURY LEVEL OF FISH (LARGE MOUTH BASS) IN FLORIDA LAKES IS LESS THAN 1.0PPM? LESS THAN 0.5 PPM : STATE THE NULL AND ALTERNATIVE HYPOTHESES. GIVE THE TEST STATISTICS AND P-VALUE ? round the test statistic to two decimal places and the p-value to three decimal places. DOES THIS SAMPLE PROVIDE EVIDENCE THAT THE AVERAGE MERCURY…
After inspecting all of the 55,000 kg of meat stored at the Wurst Sausage Company, it was found that 45,000 kg of the meat was spoiled. Parameter or Statistic?
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Four different formulations of an industrial glue are being tested. Each of the different formulations were randomly applied to joint parts of five test specimen and the tensile strength of the glue when it is applied to each test specimen is recorded. However, the tensile strength is also related to the application thickness. The data on the strength (in lbs) and thickness (in 0.01 inches) are shown in the following table. Identify the treatment (specify levels), experimental units, concomitant variable, and response variable.
A resercher inntnerested in evaluation environmetnally freindly behaviors evaluated how often people recycle (per month) based on whether they have an overall pessimistic or optimistic attitude toward eco-freindly behaviors. The results from this hypothetical study are given in the table. Pessimistic: 3,0,4,2,1,6,3,5,0,5 Optimistic: 4,9,6,8,9,5,6,8,6,7 a) test wether or not recycling behaviors differed between groups using a .05 level of significane. State the value of the test statistic and the decison to retain or reject te null hypotheis. b)compute effect size using eta-squared (η2)
The automated data collection system for a manufacturing process will record data for 25,000 parts per day. Assume that, when stable, a certain process will operate with a nonconformance rate of 37.6 NCPPM (nonconforming parts per million). If the nonconformance rate per day is to be monitored using a control chart, what type of chart would be used? Choose a P, U, or X-Bar/S Charts, and explain in a few words.

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