Suppose are running a study/poll about the accuracy rate for fingerprint identification. You randomly sample 84 people and find that 43 of them match the condition you are testing. Suppose you are have the following null and alternative hypotheses for a test you are running: Ho:p 0.56 Haip + 0.56 Calculate the test statistic, rounded to 3 decimal places

mber This will jus. A data set includes data from student evaluations of courses. The summary statistics are n= 88, x=4.09, s 0.66. Use a 0.05 significance level to test the claim that the population of student course evaluations has a mean equal to 4.25. Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative hypotheses? O A. Ho: H=4.25 Ημ 4.25 O B. H: p=4.25 Hp p*4.25 O C. Ho: u#4.25 H: =4.25 O D. Ho p=4.25 H: p>4.25 Determine the test statistic. - 1.85 (Round to two decimal places as needed.) Determine the P-value. (Round to three decimal places as needed.) State the final conclusion that addresses the original claim. V Ho. There is evidence to conclude that the mean of the population of student course evaluations is equal to 4.25 correct.

A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 2.5% margin of error at a 99% confidence level, what size of sample is needed? =

Suppose it is generally accepted that 40% of consumers use Apple products. You believe that the percentage is greater. You take a sample of 600 consumers and find that 270 of them use Apple products. Conduct a hypothesis test. Assuming the null is true, what is the mean of the population? Assuming the null is true, how far, on average, should a sample proportion be from the expected?

i need to know how to solve this

need help with C

Please answer B, C, & D.

Suppose are running a study/poll about the proportion of men over 50 who regularly have their prostate examined. You randomly sample 102 people and find that 87 of them match the condition you are testing. Suppose you are have the following null and alternative hypotheses for a test you are running: Ho:p = 0.86 Ha:p < 0.86 Calculate the test statistic, rounded to 3 decimal places. Z = Question Help: D Video Submit Question hp % & 3 4 7 8 5

The national percentage of automobile accident fatalities that are alcohol related is 39%. In a random sample of 96 automobile accident fatalities in the state of New York, 44 were alcohol related. Is this sufficient evidence to say that new York has a higher percentage of alcohol related automobile fatalities? a. Perform the appropriate test of hypothesis and paste the session window output below. b. What is the value of the test statistic? c. At a = .10, what is your decision?

Did I calculate this correctly? Thank you.