Which of the following null hypothesis is considered two tail test? HO: μ ≥77and HO: µ#77 H1: μ #77 HO: μ ≥77 d. HO: µ>77 a. b. O c.

This Determine the critical value, Zo, to test the claim about the population proportion p#0.325 given n= 42 and p=0.247. Use a = 0.05. Find O A. ±2.33 Right B. +1.96 O C. +1.645 O D. ±2.575 Click to select your answer. Click t P Type here to search hp O O O O

Which of the following null hypotheses is appropriate for an independent-measures t test? Ho Pi = P2 H = 0 H μ#6.

Your friend at UCSB claims that Cal Poly students are tall. He looks up the average height of people in the United States and finds that it is 65 inches. You take a random sample of 54 CP students and find that their average height is 66 inches with a standard deviation of 1.8 inches.

Test 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 2010 passenger cars in a particular region, 234 had only rear license plates. Among 314 commercial trucks, 46 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 0.10 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: p1= p2 H1: p1≠p2    C. H0: p1=p2 H1: p1<…

a particular hypothesis test is​ left-tailed, and the area to the left of the test statistic is 0.20. what is the​ p-value?

In their advertisements, a new diet program would like to claim that their methods result in a mean weight loss of more than ten pounds in two weeks. In order to determine if this is a valid claim, they hire an independent testing agency that then selects twenty-five people to be placed on this diet. Which of the following is the correct hypotheses? a Ho: μ- 10 Ha: μ > 10 Ho: u > 10 Ha: u = 10 Ho: U = 10 Ha: u < 10 O d Ho: p = 10 Ha: u+ 10

Perform the following hypothesis test: HO: µ = 10 H1: µ  10 The sample mean is 9.55, population standard deviation of 1.5 and a sample size of 51.  Use a 5% significance level. What is the value of the test statistic? (Give your answer rounded to 2 decimals) (Be careful to make sure your + or - sign is correct)

collected data from 150 surveys ne nanaed out at a busy park located in the region. To continue the study into the drinking habits of adults, the researcher decides to collect data from adults working in "white collar" jobs to see whether their drinking habits are in the same proportion as the general public. The null hypothesis for this test is Ho: p = 0.26 and the alternative hypothesis is Ha: p<0.26. The researcher collected data from a random sample of 120 adults with "white collar" jobs of which 25 stated that they drank once a week or less in the last month. Assume that the conditions that must be met in order for us to use the N(0, 1) distribution as the sampling distribution are satisfied. Find the values of the sample proportion, p, the test statistic, and the p-value associated with the test statistic. Round all values to the nearest thousandth. P = 0.30, z = 0.803, p-value = 0.041 A P = 0.208, z = -1.290, p-value = 0.098 P = 0.75, z = -1.32, p-value = 0.599 P = 0.208, z =…

Test 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 2000 passenger cars in a particular��� region, 215 had only rear license plates. Among 375 commercial​ trucks, 52 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 0.01 significance level to test that hypothesis.   a. Test the claim using a hypothesis test. b. Test the claim by constructing an appropriate confidence interval.