VI- The Decision which supports economist claim, for the test of hypothesis, at the level α=0.50 and the z statistic is (- 1.69 ), to test the hypothesis, H0⋅μ0=μ1againstHA⋅μ0notequalμ1 is ………....………………..
Q: Suppose an automobile manufacturer designed a radically new lightweight engine and wants to…
A: Number of different brands(K) = 4 Total number of observations(n) = 12
Q: Let μSS, μMS, μLS, μSUV and μMV represent the mean costs per mile for small sedans, medium…
A: Number of groups =5 alpha = 0.01
Q: SSTR = 6,750 H0: μ1 = μ2 = μ3 = μ4 SSE = 8,000 Ha: At least one mean is different nT = 20 The…
A: Given SSTR=6750 SSE=8000 nT=20
Q: According to a survey conducted by the Association for Dressing and Sauces, 85% of American adults…
A: H1 = Alternative hypothesis
Q: IH, in a sample of n= 30 selected from a normal population, X= 59 and S=12. what are the critical…
A: Given; Null and alternative hypotheses is H0 : μ=50 vs H1 : μ≠50 ,…
Q: iii. If p-value was found equal to 0.015 , What? is the appropriate conclusion OFail to reject the…
A: A p-value less than 0.05 (typically ≤ 0.05) is statistically significant. It indicates strong…
Q: A researcher wants to test if the elementary school children spend less than 30 minutes per day on…
A: Solution
Q: eshman tend to drop Statistics courses during the first week of the semester because the course…
A: Given:p0=0.3x=21n=50 The sample proportion is calculated as:p hat=x/n=21/50=0.42 The null and…
Q: Test whether a majority of Kansas residents planned to set off fireworks on July 4th. In other…
A: Type 2 error is acceptance of false hypothesis.
Q: (c) Based on your answer to part (b), choose what can be concluded, at the 0.10 level of…
A: Given that Sample size n =61 Sample mean =26.1 Population standard deviation =4.5
Q: Only about 12% of all people can wiggle their ears. Is this percent lower for millionaires? Of the…
A:
Q: 12% of all Americans suffer from sleep apnea. A researcher suspects that a different percentage of…
A: Given data number of success , x= 34.0 sample size, n = 305 population…
Q: Once upon a time a greater proportion of males played video games than females. Kitana, Jade, Lara…
A: Given, H0 : pmales = pfemales Ha: pmales > pfemales Z=1.08
Q: What are the null and alternative hypotheses? O B. Ho: p= 0.26 O A. Ho: p#0.26 H:p>0.26 H;: p#0.26…
A: sample proportion = 153/562 =0.27n = 562population proportion = 0.26
Q: The Environmental Protection Agency (EPA) has determined that safe drinking water should contain at…
A: Each hypothesis test has two type of erros. They are type 1 and type 2 error. Type 1 error explains…
Q: The test statistic, t, is (Round to two decimal places as needed.) The P-value is (Round to three…
A: Given: α=0.05 Let 1: Diet 2: Regular
Q: Express the null hypothesis and the alternative hypothesis in symbolic form. Use the correctsymbol…
A: According to the provided information, the manufacturer of a refrigerator system for beer kegs…
Q: Clinical psychologists and neuropsychologists often use normative test batteries for determining…
A: Clinical psychologists and neuropsychologists often use normative test batteries for determining…
Q: Calculate the test-statistic, t with the following information. n1=35n1=35, ¯x1=2.3x¯1=2.3,…
A: Sample Size Sample mean Sample S.D Sample 1 n₁ = 35 x̅₁ = 2.3 s₁ = 0.38 Sample 2 n₂ =55 x̅₂…
Q: A test of significance is conducted for the hypotheses Ho : u= 200 vs. H.:> 200. Suppose the z-score…
A:
Q: Q.1 On each of the previous 25 days, 100 electronic devices of a certain type were randomly selected…
A: The given data: Total number of items that failed to pass the test = 578 Number of devices randomly…
Q: The t-statistic is computed as follows: The p-value for t = 2.062 and 16 df is 0.0279 (from the…
A: Given information- Value of t-statistics = 2.062 Degree of freedom, df = 16 We have to find the…
Q: f. Interpret the p-value, according to its definition. (You are not asked to make a decision…
A: Given N=600 Mean=52.38 Standard Deviation=9.726 Standard Error (mean)=0.397 t=6.006 df=599…
Q: You are performing a right-tailed t-test with a sample size of 19 If α=.01α=.01, and your test…
A: Assume that μ is the population mean.
Q: 4) Suppose a test statistic is calculated as Z= 2.40. Given a right tailed test, what is its…
A: It is given that the the calculated value of the test statistic is obtained as Z = 2.40 and the test…
Q: that you're interested in the mean score, , on this subsection among the general population. You…
A:
Q: An administrator at a rural college claims that the proportion, p, if students who commute father…
A:
Q: Lucy is using a one-sample t-test based on a simple random sample of size n = 24 to test the null…
A:
Q: SSTR = 6,750 H0: μ1 = μ2 = μ3 = μ4 SSE = 8,000 Ha: At least one mean is different nT = 20 The…
A: From the given data: Degree of freedom SS MSR=SS/Degree of freedom Between Treatment 4-1=3…
Q: When consumers apply for credit cards, their credit is rated using FICO scores. A random sample of…
A:
Q: You are performing a two-tailed test with a sample size of 44. If α=.02α=.02, find the positive…
A: 1. You are performing a two-tailed test with a sample size of 44.If α=.02α=.02, find the positive…
Q: 9.26 According to the U.S. Bureau of Labor Statistics, all workers in America who had a bachelor's…
A: Hypotheses:Let µ be the mean weekly earning of American workers who have a bachelor’s degree. The…
Q: a. For this study, we should use t-test for a population mean b. The null and alternative hypotheses…
A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: A researcher wants to know if athletic women are more flexible than non-athletic women. For this…
A: From the provided information,
Q: 2. A recent report on elementary schools in Kent county claimed that 13% of elementary students…
A: Given data number of success , x= 17 sample size, n =80 population proportion,p= 0.13
Q: A research center claims that at least 27% of adults in a certain country think that their taxes…
A:
Q: 2. Several different factors influence the value obtained for at statistic. For each of the…
A: Several factors influences the value of the test statistic t. Consider the case of testing the…
Q: The test statistic, t, is -8.04. (Round to two decimal places as needed.) The P-value is 0.000.…
A: Given Data : For Sample 1 x̄1 = 0.79037 n1 = 27 s1 = 0.00449 For…
Q: Express the null and alternative hypotheses in symbolic form for this claim: the mean weight of male…
A: Null and alternative hypotheses: Null hypothesis is a nullified statement about population parameter…
Q: Suppose you are conducting a test of significance for the weight of a bag of Lay's Potato Chips.…
A: We have to be find out correct answer
Q: The recidivism rate for convicted sex offenders is 15%. A warden suspects that this percent is…
A: Given that Population proportion=0.15 Sample size (n)=381 Number of them repeat offender (X)=46…
Q: Two new drugs are being compared for effectiveness in lowering total cholesterol levels. On a sample…
A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…
Q: 14% of all Americans suffer from sleep apnea. A researcher suspects that a lower percentage of those…
A: Note: Thank you for the question. Since multiple subparts are posted, according to our policy, we…
Q: A random sample of 63 packs of potato chips weighed, on the average, 6.23 grams. The standard…
A:
Q: Only 18% of registered voters voted in the last election. Will voter participation decline for the…
A: State the hypotheses. Obtain the value of the test statistic. The required value is, Thus, the…
Q: 7) Your Statistics teacher refused to give you your real grade, but told you that your z – score was…
A: Note: Hey there! Thank you for the question. As you have posted multiple questions, we have solved…
Q: 5A professor at a local universily noted that the 0k her students were hormally distnbuted with a…
A:
Q: When testing the claim that the population mean is less than 12.8, suppose you get a test statistic…
A: The following information has been given: The test statistic is t=-0.92. The p-value =0.1818.
Q: a. Is there evidence to support the claim that working hours of the PhD student exceeds 13 hours?…
A: Note:**As per guidelines, we can answer only one question. I request you to repost other parts…
VI- The Decision which supports economist claim, for the test of hypothesis, at the level α=0.50 and the z statistic is (- 1.69 ), to test the hypothesis, H0⋅μ0=μ1againstHA⋅μ0notequalμ1
is ………....………………..
Step by step
Solved in 4 steps
- The F Statistic from an experiment with k = 7 and n = 42 is 2.55. At α = 0.05, will you reject the null hypothesis?For the Following Hypothesis: H0: μ≤70 HA: μ≥70 With n=20 , x ̅=71.2, s=6.9, α=0.1, State The decision rule in terms of the critical value of the test statistic. The calculated value of the test statistic. The Conclusion.A veterinarian claims that the mean weight of adult German shepherd dogs is 75 pounds. The test statistic is -2.01 when a researcher applied hypothesis test to test a veterinarian's claim at ?=0.05α=0.05. Find the critical value(s) and state the conclusion.
- 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.You are using t-test with 15 degrees of freedom to test H0: u=112 vs Ha: u<112, and the rejection was defined to be all the values less than -1.753. What is the implied value of alpha that this test is being performed at?A researcher conducts a hypothesis test using a sample of n = 20 with M = 34 and s 2 = 36 from an unknown population. What is the df value for the t statistic?
- A test of hypothesis has the following details: H0: µ = 50 vs Ha: µ < 50, n = 64, σ = 8, α = 0.04, x¯ = 47, and σ is What is the critical value for this test? (Hint: You will need to use R to calculate the solution to this question). (a) CV = −1.750686 (b) CV = 1.554774 (c) CV = 1.750686 (d) CV = −1.554774. The test statistic for testing H0: μ = 100 against HA: μ ≠ 100 was t = 3.3, with P-value 0.001. Then, Choose the best asnwerr below: A. this must be wrong, because a large t test statistic must have a large P-value. B. there is not enough information here to draw a conclusion. C. there is not strong evidence that μ < 100. D. there is not strong evidence that μ = 100. E. there is strong evidence that μ > 100The test statistic of z=−2.07 is obtained when testing the claim that p<0.85. a. Using a significance level of α=0.05, find the critical value(s). b. Should we reject H0 or should we fail to reject H0?
- the null and alternative hypothesis are given. h0: p= 0.84 h1: pgreater than .84 determine left, right or two tailed and the parameter that is being testedIn the tt-test of significance for the hypotheses H0:μ=11 and Ha:μ<11, the value of the test statistic was found to be t = 1.205 using a sample of size 18. Estimate the upper bound for the P-value associated with this test. That is, fill in the blank P <P< _____. Please show work!