A sample of psychology students in MSU-IIT was part of a study that examined their happiness level using a 9-point Likert scale. The mean from a previous study on the happiness level of the general population of MSU-IIT was 6.4. Determine whether the current sample has significantly higher levels of happiness as compared to the general population of MSU-IIT students. These are the scores of the sample: 8, 4, 6, 3, 6, 5, 8. Significance level = .05

Q5: Please type your answer and show your work by typing

The lengths of adult males' hands are normally distributed with mean 187 mm and standard deviation is 7 mm. Suppose that 18 individuals are randomly chosen. Round all answers to 4 where possible. DO NOT USE EXCEL FORMULA. CALCULATE BY HAND OR CALCULATOR. 1. For the group of 18, find the probability that the average hand length is more than 189. 2. Find the third quartile for the average adult male hand length for this sample size.

What sample size is needed to give a margin of error within +4% in estimating a population proportion with 90% confidence? Use z-values rounded to three decimal places. Round your answer up to the nearest integer. Sample size = i 0.17 eTextbook and Media Hint Assista

You have computed the test statistic for a test involving 2 independent means. The sample sizes were 15 and 20. The test statistic was t = 2.356 A. Compute the p value for a right tail test, using the more conservative method. Report to 4 decimal places.

The number of successes and the sample size are given for a simple random sample from a population. Decide whether using the one-proportion z-interval procedure is appropriate. x= 13, n= 30 Not appropriate Appropriate

You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 85%. You would like to be 95% confident that your estimate is within 3.5% of the true population proportion. How large of a sample size is required? Do not round mid- calculation. Submit Question IN

I got an answer of 32 and it kept telling me wrong. I don't know what I'm doing wrong

A paired and independent- sample t-test each had degrees of preedom (df)=33.What are the sample sizes? A.paired-samples t-test 34/independnt-samples t-test 35 B.paired-samples t-test 32/independent-samples t-test 31 C.paired-smaples t-test 35/independent- samples t-test 34

When determining the sample size, the margin of error is double the same as not related half of OO interval width.