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?DIIO 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 QuestionF3$4RF4%5TGBF56HNF6e&7UXM8PrtScnK9HomeF9EndF10Po

The following information has been given: The test statistic is t=-0.92. The p-value =0.1818.

Answered: When testing the claim that the…

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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A claim is made that 25% of American college students go to a beach for spring break. You believe this claim is incorrect. You would like to test the null hypothesis that p = 0.25 versus the alternative hypothesis that p ≠ 0.25. You gather data from a random sample of 100 college students and obtain a test statistic of 3.3. If we assume the significance (or alpha) level is 0.01, what should your decision be? 1. Reject the null hypothesis 2. Fail to reject the null hypothesis 3. Reject the alternative hypothesis 4. Fail to reject the alternative hypothesis 5. We cannot reach a conclusion without knowing the sample proportion.
||| = Hypothesis test for a population proportion using the critical... Based on their records, a hospital claims that the proportion, p, of full-term babies born weigh over 7 pounds is 36%. A pediatrician who works with several hospitals in the community would like to verify the hopital's claim and investigates. In a random sample of 145 babies born in the community, 49 weighed over 7 pounds. Is there enough evidence to reject the hospital's claim at the 0.10 level of significance? Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) (a) State the null hypothesis H, and the alternative hypothesis H₁. Ho :D H₁ :0 (b) Determine the type of test statistic to use. (Choose one) ▼ (c) Find the value of the test statistic. (Round to three or more decimal places.) (d) Find the two critical values. (Round to three or more decimal places.) Dand (e) Can we reject the claim that…
You wish to test the following claim (Ha) at a significance level of a = 0.02. H.:P1 = P2 Ha:P1 < P2 You obtain a random sample of size 476 from the first population, with 344 successes. You obtain a random sample of size 398 from the second population, with 331 successes. What is the test statistic for this sample? (Report answer accurate to 2 decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to 3 decimal places.) p-value = The p-value is... less than a greater than a This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... Because our p-value is less than alpha, we fail to reject the Ho. There is not enough evidence to support the claim that the first population proportion is less than the second population proportion. Because our p-value is greater than alpha, we reject the Ho. There is enough evidence to support the claim that the first population…
Below is the full question for the last question Fail to reject / reject the null hypothesis. There is / is not enough evidence to Support / reject the claim
K In a study of the accuracy of fast food drive-through orders, one restaurant had 40 orders that were not accurate among 335 orders observed. Use a 0.01 significance level to test the claim that the rate of inaccurate orders is equal to 10%. Does the accuracy rate appear to be acceptable? 2 W S Identify the null and alternative hypotheses for this test. Choose the correct answer below. OA. Ho: p*0.1 H₁: p=0.1 View an example Get more help. дв OB. Ho: p=0.1 H₁: p0.1 X Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is (Round to two decimal places as needed.) Monroe's Temp....docx Removed # 3 80 E D с $ 4 a R F SAMPLE Persuas....pdf % 5 V T G 6 B MacBook Air Fo Y H 5373255 (1) (1).docx & 7 N C... U * 8 J A DII 1 M D ( 9 K 5373255 (1).docx DD O : ; I 4 F11 { [ = option Check answer Show All ? 1 4 F12 X 1 I T I dele
K In a study of the accuracy of fast food drive-through orders, one restaurant had 36 orders that were not accurate among 346 orders observed. Use a 0.10 significance level to test the claim that the rate of inaccurate orders is equal to 10%. Does the accuracy rate appear to be acceptable? Identify the null and alternative hypotheses for this test. Choose the correct answer below. OA. Ho: p0.1 H₁: p=0.1 OB. Ho: p=0.1 H₁: p=0.1 OC. Ho: p=0.1 H₁: p 0.1 C
> • Question 21 You are testing the claim that the mean weight of grizzly bears in a National Park equals 434 pounds. a. Select the correct set of hypotheses: O H.:H 2 434; H.:µ 434 b. Suppose that you reject Ho. Select the correct conclusion: O There is sufficient evidence to support the claim that grizzly bear weights equals 434 pounds O There is sufficient evidence to reject the claim that grizzly bear weights equals 434 pounds O There is insufficient evidence to support the claim that grizzly bear weights equals 434 pounds O There is insufficient evidence to reject the claim that grizzly bear weights equals 434 pounds c. Now suppose that you do not reject Ho. Select the correct conclusion: O There is sufficient evidence to support the claim that grizzly bear weights equals 434 pounds O There is sufficient evidence to reject the claim that grizzly bear weights equals 434 pounds ctor O There is insufficient evidence to support the claim that grizzly bear weights equals 434 pounds O…
You wish to test the following claim (Ha) at a significance level of a = 0.001. H : μ = 59.1 H : μ = 59.1 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n = 83 with a mean of M = 61.2 and a standard deviation of SD = 11.5. What is the critical value for this test? (Round to three decimal places.) Critical value = What is the test statistic for this sample? (Round to three decimal places.) Test statistic =
Determine the null and alternative hypotheses. Choose the correct choice below. A. H0: The expected frequencies are all equal to 5. Ha: At least one expected frequency differs from 5. B. H0: The distribution of the variable is the same as the given distribution. Ha: The distribution of the variable differs from the given distribution. C. H0: The distribution of the variable differs from the normal distribution. Ha: The distribution of the variable is the normal distribution. D. H0: The distribution of the variable differs from the given distribution. Ha: The distribution of the variable is the same as the given distribution. Compute the value of the test statistic, χ2. χ2= (Round to three decimal places as needed.) Find the P-value. P= (Round to three decimal places as needed.) Does the data provide sufficient evidence that the distribution of the variable differs from the given distribution? A. No,…
A random sample of 64 students was asked to respond on a scale from one (strongly disagree) to seven (strongly agree) to the proposition: "Cellphone helps raise our standard of living." The sample mean response was 4.60 and the sample standard deviation was 1.6. Find the minimum significance level at which we can show that the true mean is greater than 4. 1 =-T.INV(0.05,63) 2 =T.DIST(3,63) 3 =T.INV.2T(0.10,63) 4 =T.DIST.RT(2,63) 5 =T.DIST.RT(3,63)
New Orleans' Coca Cola bottling center wants to determine whether the mean amount of product in a 12 oz can of Coke is actually 12 ounces. Thus, the null and alternative hypotheses are Ho: mu is equal to 12 ounces Ha: mu is not equal to 12 ouncesYou want to be extra sure that you aren't underfilling (which would open you up to a lawsuit). Being risk averse, you set out to conduct a hypothesis test at a stringent 99% level. Fill rates are distributed Normally. You take a sample of 50 different Coke cans and carefully measure the amount of product. From this sample, you calculate an avg fill of 12.3 ounces, with a standard deviation of 0.75 ounces. What do you conclude about the average amount of Coke product in the cans? Group of answer choices a. There is sufficient evidence to conclude that you are not filling to 12 ounces on average. b. There is NOT sufficient evidence to conclude that you are under- or over-filling on average.
You wish to test the following claim (Ha) at a significance level of a = 0.001. H,:P = P2 Ha:pi > p You obtain 303 successes in a sample of size n = 488 from the first population. You obtain 159 successes in a sample of size ry = 266 from the second population. What is the test statistic for this sample? test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... O less than (or equal to) a O greater than a This test statistic leads to a decision to... O reject the null O accept the null O fail to reject the null As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the first population proportion is greater than the second population proportion. O There is not sufficient evidence to warrant rejection of the claim that the first population proportion is greater than the second population proportion. O The sample data support the claim that the first population…

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