A coin-operated drink machine was designed to discharge a mean of 9 ounces of coffee per cup. Suppose that we want to carry out a hypothesis test to see ifthe true mean discharge differs from 9. State the null hypothesis Ho and the alternative hypothesis H₁ that we would use for this test.Ho: DH₁: 0μ

given data, A coin - oprated drink was designed to discharge a μ=9claim:hypothesis test to see if…

Answered: A coin-operated drink machine was…

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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Johanna has conducted a hypothesis test for H0:μ=72 vs. Ha:μ≠72, found a p-value of 0.07, and decided not to reject the null hypothesis. What conclusion is associated with this decision?A. There is not evidence to show that μ≠72.B. There is evidence to show that μ=72.C. There is evidence to show that μ≠72.D. There is not evidence to show that μ=72.
The price X (dollars per pound) and consumption y (in pounds per capita) of beef were samples for 10 randomly selected years. The following data should be used to answer the question that follows. n = 10 Ex = 36.19 Ix² = 134.17 2.9 < x s 6.2 Ey = 774.7 Iy² = 60739.23 Exy = 2832.21 Using this data, a student calculated SSy = 28.43 SSx = 3.2 SSy= 717. Calculate the %3D %3D value of the standard error or regression, Se , and enter you answer accurate to the nearest hundredth (2 decimal places).
Question 16 Express the null hypothesis Ho and the alternative hypothesis H1 in symbolic form. Use the correct symbol (u, p, o )for the indicated parameter. The manufacturer of a refrigerator system for beer kegs produces refrigerators that are supposed to maintain a true mean temperature, u, of 41°F, ideal for a certain type of German pilsner. The owner of the brewery does not agree with the refrigerator manufacturer, and claims he can prove that the true mean temperature is incorrect. Ο H μ 41ο. H1: H + 41° O Ho: us 41° H1: u > 41° Họ: H2 41° H1: H< 41° O Ho: H = 41° H1: H = 41° %3D
For the situation described below, state the null and alternative hypotheses to be tested. (Enter != for ≠ as needed.) A new variety of pearl millet is expected to provide an increased yield over the variety presently in use, which has a mean yield of about 55 bushels per acre.
A company wants to reduce heat generated in their factory by chainging the oil they use. Nominal engine temperature remains at 135 C. Data generated from experiment are shown below. Based on this data perform a T-Test to determine if engine temperature is lower that 135 C. Please indicate your null and alternative hypotheses as well as type of T test performed. Run Temp (C) 1 130 2 132 3 133 4 128 5 136 6 129 7 131
A researcher suspects that the mean birth weights of babies whose mothers did not see a doctor before delivery is less than 3000 grams. The researcher states the hypotheses as H:x = 3000 grams H, x 3000 grams; He:x< 3000 grams, where x = the mean birth weights of the sample of babies whose mothers did not see a doctor before delivery. Ho: x < 3000 grams; H,:x = 3000 grams, where x = the mean birth weights of the sample of babies whose mothers did not see a doctor before delivery. Ho: = 3000 grams; H # 3000 grams, where = the true mean birth weights of all babies whose mothers did not see a doctor before delivery. Ho: i = 3000 grams; H:< 3000 grams, where = the true mean birth weights of all babies whose mothers did not see a doctor before delivery. O Ho : š == 3000 grams; H. x 3000 grams, where x = the mean birth weights of the sample of babies whose mothers did not see a doctor before delivery.
QUESTION 4 Express the null hypothesis and the alternative hypothesis in symbolic form for a test to support this claim. Use the correct symbol (u. p. a) for the indicated parameter. A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO, p. is less than 2 in every one thousand. Ho:p> 0.002 H₁; p ≤ 0.002 Ho: p 0.002 Ho: P = 0.002 Hj: p < 0.002
11. A hypothesis test is conducted with H0 : µ = 46 vs. Ha: µ ≠ 46. The hypothesis test sample finds x̅ = 47.2, s = 5, and n = 81. The tail area in this test is P =
A tax accountant would like to test the claim that the proportion of individuals who owe when filing their taxes is greater than 0.20. If the z− test statistic was calculated as z=1.94, does the tax accountant have enough evidence to reject the null hypothesis? Assume α=0.05.
When testing the claim that the population mean is less than 12.8, suppose you get a test statistic of t= -0.92 and a P-value of 0.1818. What should we conclude about the claim? DII O There is sufficient evidence to warrant rejection of the claim. O There is not sufficient evidence to warrant rejection of the claim. O There is sufficient evidence to support the claim. O There is not sufficient evidence to support the claim. Submit Question F3 $ 4 R F4 % 5 T G B F5 6 H N F6 e & 7 U X M 8 PrtScn K 9 Home F9 End F10 Po
ndependent random samples are selected from two populations and are used to test the hypothesis Hn: (H, - H2) = 0 against the alternative H,: (4, - H2) #0. An analysis of 232 observations from population 1 and 311 from population 2 yielded p-value of 0.113. Complete parts a and b below. a. Interpret the results of the computer analysis. Use as0.10. A. Since this p-value exceeds the given value of a, there is insufficient evidence to indicate that the population means are different. O B. Since the given a value exceeds this p-value, there is insufficient evidence to indicate that the population means are different. OC. Since the given a value exceeds this p-value, there sufficient evidence to indicate that the population means are different. O D. Since this p-value exceeds the given value of , there is sufficient evidence to indicate that the population means are different. b. If the alternative hypothesis had been Ha: (H1 - H2) <0, how would the p-value change? Interpret the p-value…
If a treatment is expected to decrease scores in a population with µ= 30, then the alternative hypothesis is µ ≤ 30. True or false?

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