We want to conduct a hypothesis test of the claim that the population mean daily profit of a convenience store is less than 480 dollars. So, we record the dailyprofit for a random sample of days. The sample has a mean of 495 dollars and a standard deviation of 74 dollars.For each of the following sampling scenarios, choose an appropriate test statistic for our hypothesis test on the population mean. Then calculate that statistic.Round your answers to two decimal places.(a) The sample has size 12, and it is from a population with a distribution about which we know very little.O² =01 = 0O It is unclear which test statistic to use.X5?(b) The sample has size 80, and it is from a non-normally distributed population with a known standard deviation of 76.o z = 0t=0OIt is unclear which test statistic to use.CheckacerDII➜>>Aesc!←@2#3$4%56&O7★8O(9Save For Later0OPSubmit AssignmentO↓11:backspac

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Answered: We want to conduct a hypothesis test of…

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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or each of the situations below, name the statistical test that you would use to analyze the data. It is possible that some test may be used more than once, or not at all. Options: one-sample z, two-sample z, one-sample independent-measures t, one-sample repeated-measures t,one-way independent-measures ANOVA, one-way repeated-measures ANOVA, two-way independent-measures ANOVA,Pearson correlation, Spearman correlation, point-biserial correlation, simple regression, multiple regression,chi-square for independence, chi-square for goodness-of-fit, binomial,Wilcoxon Rank Sums test, Wilcoxon Signed Rank T, Mann-Whitney U, Kruskal-Wallace H, Friedman chi-square 11. __________________________________________ An art professor is accused of showing favoritism to art majors in her courses. To defend her grading practices, the Dean compares the numbers of As, Bs, Cs, Ds, and Fs awarded to majors and minors, and finds that no favoritism exists.12. __________________________________________ Studies…
Write your answers for this question on paper and then upload: From sampling 40 taxicab rides in New York City, a survey found that the mean cost of the taxi fare from the sample was $12.04. If the population standard deviation is $8.36, test the claim that the mean cost of a taxicab ride in New York City is less than $15.00. (a) State the null and alternative hypothesis. (b) By hand, find the test statistic z-score. Round to two decimal places. (c) Sketch the sampling distribution labeling the test statistic found in part (b) and compare it to the critical value z-score found in the previous question to make a decision to either reject or fail to reject the null hypothesis. Upload Choose a File
Question # 4 The waiting times of eight (8) patients to be seen in a medical office, expressed in minutes, were as follows: 34, 56, 48, 29, 33, 44, 51, 65. Calculate the following: range, variance and deviation standard.
Please answer within 30min thanks.
We want to conduct a hypothesis test of the claim that the population mean daily profit of a convenience store is less than 480 dollars. So, we record the daily profit for a random sample of days. The sample has a mean of 495 dollars and a standard deviation of 74 dollars. For each of the following sampling scenarios, choose an appropriate test statistic for our hypothesis test on the population mean. Then calculate that statistic. Round your answers to two decimal places. (a) The sample has size 12, and it is from a population with a distribution about which we know very little. 0²=E Ot= OIt is unclear which test statistic to use. X S (b) The sample has size 80, and it is from a non-normally distributed population with a known standard deviation of 76. OZE ot=0 It is unclear which test statistic to use. O Check esc @ # $ 0 % acer Oll ^
Just question #2 The chart above will be used to answer it. (:
1J,000 Source: Chronicle of Higher Education. 17. Medical Operations The director of a medical hospital feels that her surgeons perform fewer operations per year than the national average of 211. She selected a random sample of 15 surgeons and found that the mean number of operations they performed was 208.8. The standard deviation of the sample was 3.8. Is there enough evidence to support the director's feelings at a= 0.10? Would the null hypothesis be rejected at a = 0.01? 18. Cell Phone Call Lengths The average local cell phone call length was reported to be 2.27 minutes. A random sample of 20 phone calls showed an average of 2.98 minutes in length with a standard deviation of 0.98 minute. At a = 0.05, can it be concluded that the average differs from the population average? %3D World Almanac.
Example 2-24. Calculate : (i) Quartile deviation (Q.1D.), and (ii) Mean Deviation (M.D.) from mean, for the following data : Marks. 0-10 10-20 20-30 30-40 40-50 50-60 60-70 No. of Students 6. 8 15
Consider the following data: −10, −10, 0, 3, −10, 3, 3 Step 1 of 3: Calculate the value of the sample Variance. Round your answer to one decimal place. Step 2 of 3: Calculate the value of the sample deviation. Round your answer to one decimal place. Step 3 of 3: Calculate the value of the range.
#15).
I need help with parts 2,3, and 6

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