you is the value that delimits an area of0.025in the right tail.20.025• The value of the test statistic is given byyouStudent's t distributionStep 1: Enter the number of degreesof freedom.27Step 2: Select one queue or twoqueues.A tailtwo tailsStep 3: Enter the critical value(s).(Round to 3 decimal places.0.0527χ-μyesnoStep 4: Enter the test statistic.(Round to 3 decimal places.-3.024-20.40.30.2-0.1-23 IIpartially correct(b): Your answer is wrong.An orange farmer introduces a new variety of oranges. She states that the mean pH of the new variety is5.2.To test the claim, an independent researcherselected a random sample of28oranges of the new variety and found that the sample mean pH was4.8with a sample standard deviation of0.7.Assume that thepopulation of pH values of the new variety of oranges follow approximately a normal distribution.Complete the parts below to perform a hypothesis test to determine if there is sufficient evidence, at the significance level of0.05, to reject the claim thată,theaverage of the pH of the new variety of oranges, is5.2.(a) Formulate the null hypothesish and the alternative hypothesish that you will use for the test.ho: μ = 5.2h₁:μ ‡ 5.2μO

Sample size n =28Sample mean=4.8Sample standard deviation =0.7

Answered: Student's t distribution Step 1: Enter…

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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3.5 GRE scores, Part II: In Exercise 3.3 we saw two distributions for GRE scores: N(H=151,0=7) for the verbal section of the exam and N(u=153, o=7.67) for the quantitative section. Use this information to compute each of the following. Round all your answers to 2 decimal places. a) The score of a student who scored in the 75-th percentile on the Quantitative Reasoning section. b) The score of a student who scored worse than 70% of the test takers in the Verbal Reasoning section.
Remaining Time: 1 hour, 28 minutes, 34 seconds. Question Completion Status: 20 30 50 90 100 10 120 130 140 150 6 170 180 190 20 21 A Click Submit to complete this assessment. Question 21 Save and Submit Question 21 of 21 5 points Save Answer Provide an appropriate response. The data below are the final exam scores of 10 randomly selected chemistry students and the number of hours they slept the night before the exam. What is the best predicted value for y given x=3? Hours, x 3 Scores, y 65 5 2 8 2 4 4 5 6 3 80 60 88 66 78 85 90 90 71 O72 O 70 O 71 O 69 جا A Click Submit to complete this assessment. 61°F Sunny RYZEN AND RADEON GRAPHICS 30 ATOMY ANSWE Esc ion AN LEMB tab AK F1 F2 F3 2 # 3 W E % Q Search 8 R Y Question 21 of 21 Save and Submit G H K C Par Hel
price/pound US dollars w A apples plums Fig 1. Inconsistency of prices for common fruit items among twelve major cities oranges This graph shows the difference in average fruit prices, as measured in twelve major cities across the world. The error bars represent + 2 SE. • Is there a statistically significant difference between the average price of apples and plums? How do you know? • Is there a statistically significant difference between the average price of apples and oranges? How do you know?
12/12 cont.
PART I. SAMPLING DISTRIBUTION OF THE MEAN Assume you have a population which has been measured on a scale of career ambition with u = 150 and o = 40. Assume that the ambition scores are normally distributed in the population. Assume that you have drawn a sample of 100 individuals from the population and have recorded the mean in this sample. Then you have replaced the individuals in the population and have drawn another sample of size 100. You keep doing this repeatedly until you have a list of the sample means in a huge number of samples from this population. Now you make a plot of the means of all the samples (i.e., you form a distribution of the sample means). 1. What is this distribution called? 2. What is the numerical value of the mean of the distribution you have created? 3. In general, how does the mean of the distribution you have created relate to the population mean? 4. What will be the shape of the distribution of means? Explain your answer. 5. Now suppose you calculate the…
Score: 14/18 7/9 answered Question 7 Engineers must consider the breadths of male heads when designing helmets. The company researchers have determined that the population of potential clientele have head breadths that are normally distributed with a mean of 6.9-in and a standard deyiation of 1.1-in. In what range would you expect to find the middle 98% of most head breadths? Between and If you were to draw samples of size 43 from this population, in what range would you expect to find the middle 98% of most averages for the breadths of male heads in the sample? Between and Enter your answers as numbers. Your answers should be accurate to 2 decimal places. Question Help: Message instructor D Post to forum Submit Question 2 Type here to search 12 f4 16 esc 米 %23 % &. 3. 4. %2 2
distribution. Test Ho: p = 0.26 vs Hap < 0.26 when the sample has n = 700, and p = 0.228 with SE = 0.02. 0 Find the value of the standardized z-test statistic. Round your answer to two decimal places. Z = IN

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