QUESTION 4Pennies minted after 1983 are known to weigh exactly 2.50 grams. You can use this information to determinewhether your scale is correctly calibrated. You place a penny on a scale and weigh it numerous times. If the scaleis calibrated correctly, then u would equal 2.50 grams. If it's not correctly calibrated, then u would not equal 2.50grams.State the null and alternate hypotheses. Note: Here are some symbols you may want to copy and paste whenyou write your answers:Но:H1:

We have given that, Population mean (μ) then we have to state the null and alternative hypothesis?

Answered: Pennies minted after 1983 are known to…

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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Roller coaster ride: A roller coaster is being designed that will accommodate 60 riders. The maximum weight the coaster can hold safely is 12,000 pounds. According to the National Health Statistics Reports, the weights of adult U.S. men have mean 199 pounds and standard deviation 73 pounds, and the weights of adult U.S. women have mean 169 pounds and standard deviation 82 pounds. Use the TI-84 Plus calculator. Answer the three following questions.
The average salary in this city is $48,800. Is the average less for single people? 57 randomly selected single people who were surveyed had an average salary of $44,815 and a standard deviation of $16,730. What can be concluded at the a = 0.05 level of significance?
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Historical data indicates that the mean weight of female yoga instructors working at a local studio is 150 Ibs. New research seems to indicate that the mean is now at most 150 lbs. Express the null and alternative hypotheses in symbolic form for this claim. Ho: 7
Caselet 3 To test a subject's ability to estimate sizes, he was shown 10 different objects and was asked to estimate their length or diameter. The object was then measured, and the results were recorded in the table. Is there evidence to say that the person has good estimation ability? Test with level of significance of 0.05. Object Pencil Dinner Plate Book 1 Cell Phone Photograph Toy Belt Clothespin Book 2 Calculator Estimated (Inches) Actual (Inches) 7 9.5 7.5 4 14 3.75 42 2.75 10 3.5 6 10.25 6.75 4.25 15.75 5 41.5 3.75 9.25 4.75
You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estimation for the population proportion. You would like to be 90% confident that you estimate is within 2% of the true population proportion. How large of a sample size is required? Hint: Video [+] n = 1692 Enter an integer or decimal number [more..] Submit Question
Suppose the null hypothesis is rejected. State the conclusion based on the results of the test. Six years ago, 11.4% of registered births were to teenage mothers. A sociologist believes that the percentage has increased since then. Which of the following is the correct conclusion? O A. There is sufficient evidence to conclude that the percentage of teenage mothers has remained the same. O B. There is sufficient evidence to conclude that the percentage of teenage mothers has increased. O C. There is not sufficient evidence to conclude that the percentage of teenage mothers has remained the same. O D. There is not sufficient evidence to conclude that the percentage of teenage mothers has increased.
For the statement below, write the claim as a mathematical statement. State the null and alternative hypotheses and identify which represents the claim. A laptop manufacturer claims that the mean life of the battery for a certain model of laptop is less than 9 hours. Write the claim as a mathematical statement. OA. μ=9 OD. H>9 Choose the correct null and alternative hypotheses below. OA. Ho: *9 OB. Ho: Hs9 Ha: H=9 H₂:μ>9 OB. us9 OE. *9 OD. Ho: 9 is the claim OD. The alternative hypothesis Ha: #9 is the claim O E. The null hypothesis Ho: 29 is the claim. O F. The null hypothesis Ho: μ = 9 is the claim OC. μ29 OF. μ9 Ha:μs9 ⒸF. Ho: 29 H₂:μ<9
The data in the accompanying table give the weights (in g) of randomly selected quarters that were minted after 1964. The quarters are supposed to have a median weight of 5.670 g. Use the sign test and a 0.01 significance level to test the claim that the median is equal to 5.670 g. Do quarters appear to be minted according to specifications? Click the icon to view the data. What are the null and alternative hypotheses? O A. Ho: Median weight = 5.670 g H₁: Median weight 5.670 g More Info OB. Ho: Median weight ≤ 5.670 g H₁: Median weight = 5.670 g O D. Ho: Median weight = 5.670 g H₁: Median weight # 5.670 g 0 Post-1964 Quarters 5.5863 5.5764 5.6582 5.5649 5.5844 5.7402 5.7367 5.6057 5.5995 5.6165 5.6448 5.5974 5.6609 5.6363 5.6352 5.5986 5.5797 5.5501 5.6238 5.6462 5.6423 5.7021 5.5481 5.7078 5.6055 5.5324 5.7417 5.6776 5.5924 5.5691 5.5666 5.7287 5.6312 5.6017 5.6626 5.6436 5.6634 5.6132 5.5441 5.6363 -
Microsoft Word -... You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is significantly different from 62% at a level of significance of a = 0.05. According to your sample, 27 out of 50 potential voters prefer the Democratic candidate. a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Select an answer v Ho: ? H₁: ? Select an answer ✓ c. The test statistic ? = d. The p-value= e. The p-value is ? a f. Based on this, we should Select an answer the null hypothesis. g. Thus, the final conclusion is that ... (please enter a decimal) (Please enter a decimal) (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.) The data suggest the populaton proportion is significantly different from 62% at a = 0.05, so there is sufficient evidence to conclude that the proportion of voters who prefer the Democratic candidate is different from 62% O The data suggest the…
Please answer using R and by hand if po
A baseball team claims that the mean length of its games is more than 1.4 hours. State H0 and Ha in words and in symbols. Then determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. Explain your reasoning. State the null hypothesis in words and in symbols. Choose the correct answer below. A. The null hypothesis expressed in words is, "the mean length of a baseball team's games is not 1.4 hours." The null hypothesis is expressed symbolically as, "H0: μ≠1.4." B. The null hypothesis expressed in words is, "the mean length of a baseball team's games is at least 1.4 hours." The null hypothesis is expressed symbolically as, "H0: μ≥1.4." C. The null hypothesis expressed in words is, "the mean length of a baseball team's games is at most 1.4 hours." The null hypothesis is expressed symbolically as, "H0: μ≤1.4." D. The null hypothesis expressed in words is, "the mean length of a…

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