The display provided from technology available below results from using data for a smartphone carrier's data speeds at airports to test the claim that they are from a population having a mean less than 4.00 Mbps. Conduct the hypothesis test using these results. Use a 0.05 significance level. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. A Click the icon to view the display from technology.
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- The display provided from technology available below results from using data for a smartphone carrier's data speeds at airports to test the claim that they are from a population having a mean less than 5.00Mbps. Conduct the hypothesis test using these results. Use a 0.05 significance level. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? Technology: T-Test μ<5.00 t=−3.708477 p=0.000324 x=4.34 Sx=1.125585 n=40 A. H0:μ=5.00Mbps H1:μ≠5.00Mbps B. H0:μ=5.00Mbps H1:μ<5.00Mbps C. H0:μ=5.00Mbps H1:μ>5.00Mbps D. H0:μ<5.00Mbps H1:μ=5.00Mbps Identify the test statistic. (Round to two decimal places as needed.) Identify the P-value. (Round to three decimal places as needed.) State the final conclusion that…is there evidence that the average infant mortality rate increases with teen birth rate? assume that the significance level is 0.05. i. state the null and alternative hypothesis. ii. should we reject or fail to reject the null? iii. justify using the rejection regionThe mean salary for a local police officer in Maine is $43,270 a year. Identify the type I AND type II errors for the hypothesis test of this claim.
- The display provided from technology available below results from using data for a smartphone carrier's data speeds at airports to test the claim that they are from a population having a mean less than 4.00 Mbps. Conduct the hypothesis test using these results. Use a 0.05 significance level. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? A. H0: μ=4.00 Mbps H1: μ>4.00 Mbps B. H0: μ=4.00 Mbps H1: μ≠4.00 Mbps C. H0: μ=4.00 Mbps H1: μ<4.00 Mbps D.H0: μ<4.00 Mbps H1: μ=4.00 Mbps Identify the test statistic. (round to 2 decimals) Identify the P-value (round to 2 decimals) (fail to reject/reject) H0. There is not (sufficient/sufficient) evidence to support the claim that the sample is from a population with a mean less than 4.00 Mbps.Historically, the percentage of U.S. residents who support stricter gun control laws has been 55%. A recent Gallup Poll of 2500 people showed 1723 in favor of stricter gun control laws . Assume the poll was given to a random sample of people. QUESTION Test the claim that the proportion of those favoring stricter gun control has changed from 0.55. Perform a hypothesis test, using a significance level of 0.01. What kind of test will you need to perform? A right, one-tailed z-test A left, one-tailed z-test A two-tailed z- testThe Center for the Study of Violence wants to determine whether a conflict-resolution program in a particular high school alters aggressive behavior among its students. For 10 students, aggression was measured both before and after they participated in the conflict resolution course. Their scores were the following (higher scores indicate greater aggressiveness): Please write the null and alternative hypothesis, and present the results of statistical test in the format of APA
- A poll taken by the Software Usability Research Laboratory surveyed 341 video gamers, and found 110 of them said that they prefer playing games on a console, rather than a computer or hand-held device. An executive at a game console manufacturing company claims that more than 25% of gamers prefer consoles. Does the poll provide convincing evidence that the claim is true? Use the α=0.05 level of significance. a) State the null and alternative hypotheses. b) What statistical test should you use to test your hypotheses (hint: which function on your calculator do you need to test) c) Using your calculator, test your hypotheses. What is the pvalue? d) Using the decision rule, would you reject or not reject the null hypotheses? Explain why. e) What would you conclude regarding the executive's claim? f) If there was a mistake, what type of error would the researchers make?Researchers investigated whether a new process for producing yarn could reduce the mean amount of volatile organic compounds (VOCs) emitted by carpet. From random samples of carpets, the researchers found the mean reduction of VOCs emitted by carpets made with yarn produced by the new process compared with that of carpets made with yarn produced by the traditional process was 13 parts per million (ppm). All conditions for inference were met, and the p-value for the appropriate hypothesis test was 0.095. Which of the following statements is the best interpretation of the p-value? (A) The probability that the null hypothesis is true is 0.095. (B) The probability that the alternative hypothesis is true is 0.095. (C) The probability of observing a mean reduction of 13 ppm is 0.095.(D) If the null hypothesis is true, the probability of observing a mean reduction of at least 13 ppm is 0.095. (E) If the null hypothesis is true, the probability of observing a mean reduction of at most 13 ppm…The drug Ritalin is designed to stimulate the central nervous system. In a random sample of 252 boys aged ten – twelve years old, it was found that 44 of the boys were taking Ritalin. It is known that the proportion of all boys aged 13 – 15 who take Ritalin is 24%. A researcher claims that the population proportions of boys who take Ritalin aged 10 – 12 is different than boys aged 13 – 15. Can you support this claim at the 5% significance level? a. Conduct a hypothesis test to test the claim at the 5% significance level. Be sure to state you Ho and Ha, your test statistic and p-value, whether or not you reject Ho and whether you support the claim. b. Show that you can use the large sample methodology. c. Write a complete sentence describing what a Type I error is in context.