Following a week-long hospital training program, 50 hospital administrators made amean score of 74 on a test administered as part of the evaluation of the training programwith a sample standard deviation of 10. Use a 0.05 significance level to test the claimthat the population mean is greater than 70. State your conclusion in the conclusion inthe context of the problem. Support your conclusion with your test statistic, criticalvalue, p-value and confidence interval.toboja ogollos indtomis lo trots oT (9-(d=botndinsaib vilsamobute agolloo botoolsz vimolStnomsivsbog order toraigmes of

We have given thatMean(µ) = 70Sample size (n) = 50Sample mean (x̅) = 74Standard deviations (s) =…

Answered: Following a week-long hospital training…

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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6. You randomly select and weigh 27 samples of an allergy medication. The sample standard deviation is 1.22 milligrams. Assuming the weights are normally distributed, construct 90% confidence intervals for the population variance and standard deviation. Please interpret your result.
The accompanying table contains the data for the amounts (in oz) in cans of a certain soda. The cans are labeled to indicate that the contents are 16 oz of soda. Use the sign test and a 0.01 significance level to test the claim that cans of this soda are filled so that the median amount is 16 oz. If the median is not 16 oz, are consumers being cheated? Click the icon to view the data. What are the null and alternative hypotheses? O A. Ho: Median volume ≤ 16 oz H₁: Median volume = 16 oz C. Ho: Median volume = 16 oz H₁: Median volume # 16 oz Find the test statistic. Test statistic (Round to three decimal places as needed.) = More Info 15.6 16.0 16.1 16.1 407 15.7 (…) 16.1 15.9 19:3 15.8 16.5 15.8 15.7 15.9 OB. Ho: Median volume ≤ 16 oz H₁: Median volume > 16 oz O D. Ho: Median volume = 16 oz H₁: Median volume < 16 oz Volume (in ounces) 15.7 15.5 15.7 15.7 15.8 420 15.9 103 16.3 15.7 15.7 16.1 16.3 15.8 15.7 15.6 15.5 15.6 15.5 20 16.0 400 15.8 19:0 15.6 15.6 15.5 16.4 15.9 D - X
Your friend claims that he heard that the average number of Facebook friends was 300 in 2010. You suspect that that the average has increased. 1. At the .05 significance level, what decision do you make? 2. Write a conclusion for your friend explaining your decision without using statistical symbols.
A researcher wants to estimate the mean amount of money spentonline by consumers in a particular market. She samples 16 consumers and finds that they spend on average $854 online with a standard deviation of $152. Construct a 99% confidence interval estimate of the mean amount of money spent online. Write a statement that correctly interprets the confidence interval.
Plzzzz explain. Quation.
The summary statistics are n=85, x=3.93, s=0.63. Use a 0.01 significance level to test the claim that the population of student course evaluations has a mean equal to 4.00. identify null/ alt hypothesis, test statistic, P- value, and state final conclusion that addresses the original claim
please help me find the test statistic and p-value!
Choose correct option and explain.
A machine used to fill gallon-sized paint cans is regulated so that the amount of paint dispensed has a mean of 128 ounces and a standard deviation of 0.40 ounce. You randomly select 45 cans and carefully measure the contents. The sample mean of the cans is 127.9 ounces. Does the machine need to be reset? Explain your reasoning. it is that you would have randomly sampled 45 cans with a mean equal to 127.9 ounces, because it within the range of a usual event, namely within of the mean of the sample means.
Consider the sample dataset : 2,4,5,9,10. What is point estimate and sample standard deviation? What is margin of error at 95% confidence level? Calculate confidence intervals at 95% confidence level.
Suppose that according to your company, the average salary for middle managers was 105,000. You believe that the salary is actually less than $105,000. You conduct a test with significance level .05 and find a P-value of .073. d. Write a conclusion for the test based upon the given information.e. According to your test, is there evidence that salary for middle managers is less than $105,000? Explain your reasoning for full credit.
n a survey, 23 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $31 and standard deviation of $17. Construct a confidence interval at a 95% confidence level.Give your answers to one decimal place. +-Interpret your confidence interval in the context of this problem.

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