State the null and alternative hypothesis b) Determine the critical value by using t-table c) Determine the rejection region
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A: Note: Hi there! Thank you for posting the question. As your question has more than 3 parts, we have…
a) State the null and alternative hypothesis
b) Determine the critical value by using t-table
c) Determine the rejection region
d) Calculate the Test statistic
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- Find the rejection region (for the standardized test statistic) for each hypothesis test. Identify the test as left- tailed, right-tailed, or two-tailed. a. Ho μ = 141 vs Hau 3.8 @ a = 0.001Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, and then state the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Among 2174 passenger cars in a particular region, 236 had only rear license plates. Among 361 commercial trucks, 55 had only rear license plates. A reasonable hypothesis is that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars. Use a 0.05 significance level to test that hypothesis. a. Test the claim using a hypothesis test. b. Test the claim by constructing an appropriate confidence interval. a. Identify the null and alternative hypotheses for this test. Let population 1 correspond to the passenger cars and population 2 correspond to the commercial trucks. Let a success be a vehicle that only has a rear license plate. A. H0: p1=p2 H1: p1>p2 B. H0:…calculate a)95% confidence interval for mean b) 90% confidence interval for mean 3x 11 5 3 12 13 18 17 22 y 25 8 11 24 20 39 43 50 show all calc A)slope B)intercept C)correlation D)line equation ➡ Elif x=12 y=² - F) if y=11 x=²
- Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. A safety administration conducted crash tests of child booster seats for cars. Listed below are results from those tests, with the measurements given in hic (standard head injury condition units). The safety requirement is that the hic measurement should be less than 1000 hic. Use a 0.05 significance level to test the claim that the sample is from a population with a mean less than 1000 hic. Do the results suggest that all of the child booster seats meet the specified requirement? 661 638 1112 610 567 498Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. A safety administration conducted crash tests of child booster seats for cars. Listed below are results from those tests, with the measurements given in hic (standard head injury condition units). The safety requirement is that the hic measurement should be less than 1000 hic. Use a 0.05 significance level to test the claim that the sample is from a population with a mean less than 1000 hic. Do the results suggest that all of the child booster seats meet the specified requirement? 763 675 1153 668 572 711Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. A safety administration conducted crash tests of child booster seats for cars. Listed below are results from those tests, with the measurements given in hic (standard head injury condition units). The safety requirement is that the hic measurement should be less than 1000 hic. Use a 0.05 significance level to test the claim that the sample is from a population with a mean less than 1000 hic. Do the results suggest that all of the child booster seats meet the specified requirement? 672 656 1286 594 551 609 D What are the hypotheses? O A. Ho: µ= 1000 hic O B. Ho: µ 1000 hic H1: µ< 1000 hic H,: µ< 1000 hic Identify the test statistic. t= (Round to three decimal places as needed.) Identify the P-value. The P-value is (Round to four decimal…
- A. Determine test statistic B. Determine critical value with k-1 degree of freedom then use the chi square to find the critical value for this part. C. Reject H0 or Fail H0.A. Determine the CRITICAL VALUE given its directional test and sample size 11. left-tailed test = 0.005 n=13* O a. -1.645 O b. 1.645 O c.-3.055 O d.-3.012 12. right-tailed test α = 0.01 n=21* O a. -2.33 b. 2.33 O c. 2.528 O d. 2.512On a standardized spatial skills task, normative data reveal that people typically get μ =23 correct solutions. A psychologist tests n = 7 individuals who have brain injuries in the right cerebral hemisphere. Using all 5 hypothesis testing steps, determine whether or not right-hemisphere damage results in significantly reduced performance on the spatial skills task at the p < .01 level. The data are as following 13 19 11 8 18 19 25
- Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. A safety administration conducted crash tests of child booster seats for cars. Listed below are results from those tests, with the measurements given in hic (standard head injury condition units). The safety requirement is that the hic measurement should be less than 1000 hic. Use a 0.01 significance level to test the claim that the sample is from a population with a mean less than 1000 hic. Do the results suggest that all of the child booster seats meet the specified requirement? 745 815 1325 700 668 469 What are the hypotheses? Identify the test statistic.A one-way ANOVA test is performed on three independent samples with n1 = 6, n2 = 7, and n3 = 8. What is the critical value obtained from the F-table for this test at the 2.5% level of significance? a) 4.56 b) 3.55 c) 29.45 d) 39.451. Assume that the populations are normally distributed. Test the hypothesis that a, >o, at the a-0.01 level of significance for the given sample data. Population 1: n, 61, 5,-34.4 Population 2, n, = 31, 3,-27.6 A) Test statistic: F=1.55. Critical value -4.31. Do not reject H, B) Test statistic:F-6.89. Critical value =4.31. Reject H.. -C) Test statistic: F-2.96. Critical value =2.21. Reject H OTest statistic: F-1.55. Critical value -2.21. Do not reject H,. 23