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- I need this ASAP, please.Suppose 247 subjects are treated with a drug that is used to treat pain and 52 of them developed nausea. Use a 0.10 significance level to test the claim that more than 20% of users develop nausea. Identify the null and alternative hypotheses for this test. Choose the correct answer below. O A. Ho: p=0.20 H₁: p=0.20. O B. Ho: p=0.20 H₁: p0.20 H₁: p=0.20 O D. Ho: p=0.20 H₁: p > 0.20 Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is (Round to two decimal places as needed.) Identify the P-value for this hypothesis test. The P-value for this hypothesis test is. (Round to three decimal places as needed.) Identify the conclusion for this hypothesis test. O A. Reject Ho. There is not sufficient evidence to warrant support of the claim that more than 20% of users develop nausea. O B. Fail to reject Ho. There is sufficient evidence to warrant support of the claim that more than 20% of users develop nausea. O C. Fail to reject Ho. There is not…Researchers are interested in whether rearing conditions lead to aggression in laboratory animals. The animals were randomly assigned to be reared under three different conditions. The following table shows the aggression scores for each animal. Does the mean aggression score differ for the three groups? Use a 5% level of significance. 1) the appropriate null and alternative hypotheses; 2) the appropriate test; 3) the decision rule; 4) the calculation of the test statistic; and 5) your conclusion including a comparison to alpha or the critical value. Rearing Condition Extremely Crowded Moderately Crowded Not Crowded 30 20 10 30 10 10 30 15 20 25…
- A real estate software program gives the estimated values of homes and lists characteristics of the homes. A prospective home buyer used the program to collect a sample of twenty-five homes and recorded the estimated value of the homes and how many bathrooms they contain. The prospective home buyer wants to investigate whether there is an association between the number of bathrooms a home contains and the estimated value of the home. Assuming all conditions for inference are met, which of the following significance tests should be used for the investigation? A two-sample z-test for a difference between proportions A A linear regression t-test for slope B A matched pairs t-test for a mean difference C A two-sample t-test for a difference between means D A chi-square test of independence Eif a researcher concludes that cereal color has no effect on amount consumed but the researcher was wrong in this conclusion which of the following best represents his decision? correct decision, type 1 error, type 2 error, or type 3 errorA recent report from the Pew Research Center indicates that even teens think they have a problem being too attached to their phones. A total of 365 teenage girls and 378 teenage boys were surveyed. Of the teenage girls surveyed, 171 reported feeling too attached to their phone. Of the teenage boys surveyed, 132 reported feeling too attached to their phone. Is there convincing statistical evidence of a difference between the two population proportions at the significance level of 0.01? (A) Yes, because the sample proportions are different. (B) Yes, because the p-value is less than 0.01. (C) Yes, because the p-value is greater than 0.01. (D) No, because the p-value is less than 0.01. (E) No, because the p-value is greater than 0.01.
- Past studies have indicated that the percentage of smokers was estimated to be about 30%. Given the new smoking cessation programs that have been implemented, you now believe that the percentage of smokers has reduced. You randomly surveyed 1775 people and found that 492 smoke. Use a 0.05 significance level to test the claim that the percentage of smokers has reduced. a) Identify the null and alternative hypotheses? Ho: ? v Ha: ? v b) What type of hypothesis test should you conduct (left-, right-, or two-tailed))? O left-tailed O right-tailed O two-tailed c) Identify the appropriate significance level. Submit Question % & 8. 5.7. Is there a relationship between gender and the type of car driven? A random sample of 1000 adults was obtained. The subjects sampled were asked their gender and what type of car they drive given choices: car, truck, or SUV. Of the females sampled, 210 drive a car, 110 drive a truck, and 180 drive a SUV. Of the males sampled, 175 drive a car, 140 drive a truck, and 185 drive a SUV. At the 5% significance level what conclusion can be reached? Would your decision change at the 2.5% significance level? prk oubu buogncs br bolk A 102 4 c htoA study was conducted to determine the proportion of people who dream in black and white instead of color. Among 297 people over the age of 55, 75 dream in black and white, and among 310 people under the age of 25, 19 dream in black and white. Use a 0.05 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below. a. Identify the test statistic. z= 6.51 (Round to two decimal places as needed.) Identify the P-value. P-value = 3.770o (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? The P-value is greater than the significance level of a = 0.05, so fail to reject the null hypothesis. There is insufficient evidence to support the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. b. Test the claim by constructing an appropriate confidence…
- Select the FALSE statement related to ANOVA.A) The alternative hypothesis is at least one population mean is different from the others.B) It is used to test the equality of three or more population means.C) The ANOVA test can be a two-tailed test.D) It requires the populations to have the same variance.Past studies have indicated that the percentage of smokers was estimated to be about 32%. Given the new smoking cessation programs that have been implemented, you now believe that the percentage of smokers has reduced. You randomly surveyed 1836 people and found that 552 smoke. Use a 0.05 significance level to test the claim that the percentage of smokers has reduced.a) Identify the null and alternative hypotheses?H0H0: H1H1: b) What type of hypothesis test should you conduct (left-, right-, or two-tailed)? left-tailed right-tailed two-tailed c) Identify the appropriate significance level.d) Calculate your test statistic. Write the result below, and be sure to round your final answer to two decimal places.e) Calculate your p-value. Write the result below, and be sure to round your final answer to four decimal places.f) Do you reject the null hypothesis? We reject the null hypothesis, since the p-value is less than the significance level. We reject the…Past studies have indicated that the percentage of smokers was estimated to be about 34%. Given the new smoking cessation programs that have been implemented, you now believe that the percentage of smokers has reduced. You randomly surveyed 1708 people and found that 544 smoke. Use a 0.05 significance level to test the claim that the percentage of smokers has reduced.a) Identify the null and alternative hypotheses?H0H0: H1H1: b) What type of hypothesis test should you conduct (left-, right-, or two-tailed)? left-tailed right-tailed two-tailed c) Identify the appropriate significance level.d) Calculate your test statistic (Use ˆpp^ rounded to 4 decimal places). Write the result below, and round your test statistic to 4 decimal places.e) Calculate your p-value. Write the result below, rounded to four decimal places.f) Do you reject the null hypothesis? We reject the null hypothesis, since the p-value is less than the significance level. We reject the…