Please answer fast please arjent help please ASAP pls Diagram below shows the normality test forimpact of covid-19 pandemic onunemployment rate in Malaysia by usingreciprocal test. Interpret the normality testresult.NORMALITY TEST12Series: ResidualsSample 2020M01 2022M01Observations 2510Mean-1.29e-16Median0.073565Maximum0.680249Minimum-0.721970Std. Dev.0.318434Skewness-0.404475Kurtos is2.963404Jarque-Bera0.683062Probability0.7106818620-0.50.00.5

Jarque Bera is a measure that used to determine the normality exist in the data set or not. It…

Answered: Diagram below shows the normality test…

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 20 newly-born baby boys showed an average weight of 7.40 pounds while a sample of 25 newly-born baby girls showed a mean weight of 6.50 pounds. If the variance of all newly-born babies are 1.25 pounds, can we say that newly-born baby boys are heavier than newly-born baby girls using the 0.05 level?
The table below shows a sample of waiting times (in days) for a heart transplant for two age groups. At α=0.05, can you conclude that the variances of the waiting times differ between the two agegroups?
Obtain the studentized deleted residuals. Which case has the largest absolute value studentized deleted residual?
The weights of a bag of cement admixture produced by a company is approximately normally distributed with a mean of 9.0 kilograms and a variance of 0.64 kilogram. If measurements are recorded to the nearest tenth of a kilogram, find the proportion of these bags with weights (a) of at most 8.4 kilograms; (b) between 7.1 and 9.2 kilograms inclusive. (With continuity correction)
A manufacturer of salad dressings uses machines to dispense liquid ingredients into bottles that move along a filling line. The machine that dispenses salad dressings is working properly when 8 ounces are dispensed. Suppose that the average amount dispensed in a particular sample of 35 bottles is 7.91 ounces with a variance of 0.03 ounces squared. Is there evidence that the machine should be stopped and production wait for repairs? The lost production from a shutdown is potentially so great that management feels that the level of significance in the analysis should be 99%. (solve without excel)
A manufacturer of salad dressings uses machines to dispense liquid ingredients into bottles that move along a filling line. The machine that dispenses salad dressings is working properly when 8 ounces are dispensed. Suppose that the average amount dispensed in a particular sample of 35 bottles is 7.91 ounces with a variance of 0.03 ounces squared. Is there evidence that the machine should be stopped and production wait for repairs? The lost production from a shutdown is potentially so great that management feels that the level of significance in the analysis should be 99%.
A food inspector, examining 12 jars of a certain brandof peanut butter, obtained the following percentages ofimpurities: 2.3, 1.9, 2.1, 2.8, 2.3, 3.6, 1.4, 1.8, 2.1, 3.2, 2.0, and 1.9. Based on the modification of Theorem 1 of Exer-cise 7, what can she assert with 95% confidence about the maximum error if she uses the mean of this sample as anestimate of the average percentage of impurities in thisbrand of peanut butter?
In a psychological testing experiment, 25 subjects are selected randomly and their reaction time, in seconds, to a particular stimulus is measured. Past experience suggests that the variance in reaction times to these types of stimuli is 4 sec2 and that the distribution of reaction times is approximately normal. The average time for the subjects is 6.2 seconds. Give an upper 95% bound for the mean reaction time.
Obtain the studentized deleted residuals. Which case has the largest absolute value studentized deleted residual? preferrably using R.
According to Zero Population Growth, the average urban U.S. resident consumes 3.3 pounds of food per day. Is this figure accurate for rural U.S. residents? Suppose 64 rural U.S. residents are identified by a random procedure and their average consumption per day is 3.60 pounds of food. Assume a population variance of 1.31 pounds of food per day. Use a 5% level of significance to determine whether the Zero Population Growth figure for urban U.S. residents also is true for rural U.S. residents on the basis of the sample data. Appendix A Statistical Tables (Round your answer to 2 decimal places.) The value of the test statistic is z = enter the value of the test statistic and we choose between reject and fail to reject the null hypothesis .
Assume that the helium porosity (in percentage) of coal samples taken from anyparticular seam is normally distributed with true population variance 0.36.(a) Compute a 95% two-sided CI for the true average porosity of a certain seam if the average porosity for 20 specimens from the seam was 4.85. (b) How large a sample size is necessary if the width of the 95% two-sided CI is to be 0.5? (c) Compute a 98% upper one-sided CI for true average porosity of another seam based on 16 specimens with a sample average porosity of 4.56.show major intermediate steps.
Robin who is studying the tensile strength of a steel alloy intended for use in golf club shafts knows that the tensile strength is approximately normally distributed with σ = 175 psi. A random sample of 15 specimens has a mean tensile strength of 2,750 psi. Test hypothesis at 0.05 level when mean strength is tested to be 3,000 psi.

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