A random sample of 777 subjects was asked to identify the day of the week that is best for quality family time. Consider the claim that the days of the week areselected with a uniform distribution so that all days have the same chance of being selected. The table below shows goodness-of-fit test results from the claimandmethod with an assumed significance level of a = 0.05.At least two days of the week have a different frequency of being selected.All days of the week have a different chance of being selected.At least one day of the week has a different chance of being selected.All days of the week have an equal chance of being selected.DeteHo:Identify the test statistic.(Type an integer or a decimal.) A random sample of 777 subjects was asked to identify the day of the week that is best for quality family time. Consider the claim that the days of the week areselected with a uniform distribution so that all days have the same chance of being selected. The table below shows goodness-of-fit test results from the claimand data from the study. Test that claim using either the critical value method or the P-value method with an assumed significance level of a = 0.05.Test statistic,Num Categories79.724Degrees of freedom 6Critical x?12.592Expected Freq111.0000P-Value0.1368...Determine the null and alternative hypotheses.Họ:H,:Identify the test statistic.* = (Type an integer or a decimal.)%3D

It is needed to test the claim that whether the days of the week selected with a uniform…

Answered: A random sample of 777 subjects was…

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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A random sample of 794 subjects was asked to identify the day of the week that is best for quality family time. Consider the claim that the days of the week are selected with a uniform distribution so that all days have the same chance of being selected. The table below shows goodness-of-fit test results from the claim and data from the study. Test that claim using either the critical value method or the P-value method with an assumed significance level of alpha = 0.05. Determine the null and alternative hypotheses.
A random sample of 774 subjects was asked to identify the day of the week that is best for quality family time. Consider the claim that the days of the week are selected with a uniform distribution so that all days have the same chance of being selected. The table below shows goodness-of-fit test results from the claim and data from the study. Test that claim using either the critical value method or the P-value method with an assumed significance level of α=0.05. a. Identify the test statistic. χ2= (Type an integer or a decimal.) b. Identify the critical value. χ2= (Type an integer or a decimal.)
A random sample of 795subjects was asked to identify the day of the week that is best for quality family time. Consider the claim that the days of the week are selected with a uniform distribution so that all days have the same chance of being selected. The table below shows goodness-of-fit test results from the claim and data from the study. Test that claim using either the critical value method or the P-value method with an assumed significance level ofα=0.05. Num Categories 7 Test statistic, χ2 7.703 Degrees of freedom 6 Critical χ2 12.592 Expected Freq 113.5714 P-Value 0.2607 Determine the null and alternative hypotheses. Identify the test statistic. Identify the critical value. State the conclusion.
A company makes a device that can be fitted to car engines to improve their fuel efficiency. The company asserts that when the device is installed drivers should experience a mean increase of more than 3kilometres per litre. Assuming that the population standard deviation of increase is known to be 0.75kilomtres per litre and a sample size of 64 cars is selected with a mean of 3.25kilometres per litre, use the p-value approach to test the null hypothesis using a significance level of 0.05.
A researcher was interested in comparing the resting pulse rates of people who exercise regularly and of those who do not exercise regularly. Independent simple random samples of 16 people who do not exercise regularly and 12 people who exerciseregularly were selected, and the resting pulse rates (in beats per minute) were recorded. The summary statistics are as follows. Use a 0.025 significance level to test the claim that the mean resting pulse rate of people who do not exercise regularly is larger than the mean resting pulse rate of people who exercise regularly. a)Identify the null hypothesis, alternative hypothesis. b)Find the test statistics c)Find the critical value d)Conclusion about the null hypothesis e)State the conclusion
A simple random sample of front-seat occupants involved in car crashes was obtained. Among 7,000 occupants not wearing seat belts, 18were killed. Among 7765 occupants wearing seat belts, 16 were killed. Use a 0.01 significance level to test the claim that seat belts are effective in reducing fatalities using the critical value approach. a) Define parameters and state null and alternative hypothesis. b)Test statistics c) P-value d) Conclusion
A large software company gives job applicants a test of programming ability and the mean for that test has been 160 in the past. Twenty-five job applicants are randomly selected from one large university and they produce a mean score and standard deviation of 183 and 12, respectively. Use a 0.05 level of significance to test the claim that this sample comes from a population with a mean score greater than 160. Use the P -value method of testing hypotheses.
In a study of the accuracy of fast food drive-through orders, one restaurant had 36 orders that were not accurate among 338 orders observed. Use a 0.01 significance level to test the claim that the rate of inaccurate orders is equal to 10%. Does the accuracy rate appear to be acceptable? The test statistic for this hypothesis test is The P-value for this hypothesis test is
In a one-tailed test of hypothesis of the population mean, with a 5% level of significance and a sample of 21 taken from a normally distributed population where the standard deviation is not known, determine the critical value of the test statistic.
The quality-control manager at a light bulb factory needs to determine whether the mean life of a large shipment of light bulbs is equal to 375.00 hours at a 95.00% confidence level. The STDEV.P = 100.00 hours. A random sample of 64 light bulbs indicate a MEAN.S of 350.00 hours. What will be the hypothesis of the study? What will be the area of rejection in this study using the Z Stat critical value? Create the statement of rejection and non-rejection based upon the Z Stat value and the Z Stat critical value What will be the conclusion of the study? (check figure: Z Stat = -2.00)
In a study of the accuracy of fast food drive-through orders, one restaurant had 30 orders that were not accurate among 393 orders observed. Use a 0.05 significance level to test the claim that the rate of inaccurate orders is equal to 10%. Does the accuracy rate appear to be acceptable? Identify the test statistic for this hypothesis test.
A random sample of 10 secretaries was asked to type a certain memorandum using both computers and typewriters, and the time required to finish the task was recorded for each secretary. A test of hypothesis will be conducted to determine if there is enough evidence to conclude that the average time required to type a certain memorandum is faster if female secretaries are using computers rather than typewriters using a 5% level of significance. If the computed statistic is 1.5, what is the correct decision and appropriate conclusion at 5% level of significance. I need help in this question a)Reject Ho. There is sufficient evidence that the average time required to type a certain memorandum is faster if female secretaries are using computers rather than typewriters using a 5% level of significance. b)Do not reject Ho. There is no sufficient evidence that the average time required to type a certain memorandum is faster if female secretaries are using computers rather than…

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