Given the following hypotheses:H us 10Hp>10A random sample of 10 observations is selected from a normal population. The sample mean was 19 and the sample standarddeviation was 4.8. Using the 0.025 significance levelDoka. State the decision rule. (Round your answer to 3 decimal pleces.)ntReject H0 it t-ncesb. Compute the value of the test statistic. (Negatlve answers should be Indlcated by e minus sign. Round your answer to 3 declmalplaces.)Value of the test stafisticc. What is your decision regarding the null hypothesis?evdence to conclude het the pooulaton mesn s grester than 10H0 There isNext>9 of 10Prev

Given:From the data, sample mean is = 19 and the Sample standard deviation is s = 4.8, and the…

Answered: Given the following hypotheses: H us 10…

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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Need help with C, D and H please
i need C and D
This assignment is worth 1 points. The extra point will be added to your overall course grade. For example: if you receive an 88% in the course you can receive up to 1 point giving you a new score of 89%. The following rubric will be used. 0.25 point for drawing the normal distribution curve with the mean value labeled on the curve and the appropriate area shaded. 0.25 point for determining the value of the standard deviation of the sample mean. 0.5 point for finding the correct probability. All work must be shown in order to receive any credit. Please upload your completed assignment here. The length of time taken on the SAT for a group of students is normally distributed with a mean of 2.5 hours and a standard deviation of 0.25 hours. A sample size of n = 60 is drawn randomly from the population. Find the probability that the sample mean is between two hours and three hours.
The average salary in this city is $46,700. Is the average different for single people? 53 randomly selected single people who were surveyed had an average salary of $48,860 and a standard deviation of $9,210. What can be concluded at the a = 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ? v Select an answer v H1: Select an er v answe c. The test statistic ? (please show your answer to 3 decimal places.) d. The p-value = e. The p-value is ? va f. Based on this, we should Select an answer v the null hypothesis. (Please show your answer to 4 decimal places.) g. Thus, the final conclusion is that .. O The data suggest that the sample mean is not significantly different from 46,700 at a = 0.05, so there is statistically insignificant evidence to conclude that the sample mean salary for singles is different from 48,860. O The data suggest that the population mean is not significantly different from 46,700…
please answer d, e, f
A random sample of 22 Midtown residents in Atlanta has been selected to be studied for their expenditure on theater tickets. The mean of spending for this group is $135 with a standard deviation of $39. The mean value of ticket expenditure in Atlanta that has been recorded for the past decade is $120. Discuss the below points: 1. What is the alternative hypothesis in this assignment? 2. Calculate the standard error of the mean for the study above. Please provide only typed answer solution no handwritten solution needed allowed
Part 2 of 4 Compute the P-value of the test statistic. Round the answer to at least four decimal places. P-value Part: 2/ 4 Part 3 of 4 Determine whether to reject H. (Choose one) the null hypothesis H,. Reject Do Not Reject
An educational researcher claims that the average GPA of graduate students at FIU is less than 3.5 . To test his claim he collected data on 81 graduate students . The sample mean GPA was 3.25 with a standard deviation of 0.3 . What is the conclusion ? Group of answer choices A. Reject the null hypothesis B. Type I error C. Fail to reject the null hypothesis D. Reject the alternative hypothesis
The mean number of eggs per person eaten in the United States is 255. Do college students eat less eggs than the average American? The 68 college students surveyed averaged 246 eggs per person and their standard deviation was 30.5. What can be concluded at the a = 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ?v Select an answer v Select an answer Y c. The test statistic ? (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? v f. Based on this, we should Select an answer v the null hypothesis.
The average square footage of a U.S. single-family home is 2500 square feet with a standard deviation of 100 square feet. Consider a random sample of 150 homes. Use Chebyshev's Rule to address the following questions. Round solutions to the nearest whole number, if necessary. At least how many of the sample homes have square footage between 1800 and 3200 square feet? homes At least what percentage of the sample homes have square footage between 2100 and 2900 square feet? Check All Parts
Joe wondered what the average age of a Netflix Outer Banks viewer is, so he conducted an SRS of 12 subscribers about their age in years and found that the sample mean is 20.2 years old with a standard deviation of 2.2 years, What is a one-sided standardized test statistic for a sample with a=0.01 if Ho: H=19. O 1.991 O 2.132 O 1.890 O 2.001
Suppose test scores can range from 0 to 200 and follow an (approximately) Normal distribution with mean 115 and standard deviation o = 25. Ho: µ = 120 and the alternative Ha: uz 120. A class of 30 students had a mean score of 117. a. What is the value of the test statistic z? b. What is the P-value? С. Would you reject or fail to reject the null at the 5% significance level? Why?

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