Number 906 1321 Porange = 1306 778 Copy Data tep 1 of 4: State the null and alternative hypotheses in terms of the expected proportion for each color of vitamin. Ho: Pgreen= Pyellow = Pred = Ha: There is a difference from the stated proportions.

Dylan has collected 20 quarters and wants to compare the age of each coin to the age of all coins in the US. Select all the reasons why a z-test should not be used.   Choose all that apply: 1. The sample standard deviation cannot be calculated 2. The sample size is >10 3. We do not have the population standard deviation 4. The sample size is <30 5. The population is <500

When dragons on planet Dathomir lay eggs, the eggs are either green or yellow. The biologists have observed over the years that 19% of the eggs are yellow, and the rest green. Next spring, the lead scientist has permission to randomly select 57 of the dragon eggs to incubate. Consider all the possible samples of 57 dragon eggs. What is the mean (μ) number of yellow eggs in samples of 57 eggs?(Please show your answer to 1 decimal place) What is the standard deviation (σ) in the number of yellow eggs in samples of size 57? (Please show your answer to 1 decimal place)

A simple random sample of six values had mean ?⎯⎯⎯=17.67 and standard deviation ?=9.092. Calculate the standard error of the sample mean, ??⎯⎯⎯⎯. Give your answer to three decimal places. ??⎯⎯⎯⎯=

6. A researcher reports an F-ratio with dfeween = 2 and df 3D2 = 30 for an independent-measures within ANOVA. a. How many treatment conditions were compared in the experiment? b. How many subjects participated in the experiment? ts

Find the standardized test statistic t for a sample with n = 25, x = 26, s = 3, and a = 0.005 if Ha: H>25. Round your answer to two decimal pla 0000 А. 1.67 B. 2.00 с. 1.24 D. 1.45

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6. What term used to identify the mean of the distribution of sample means? a. expected value of mean b. standard error of mean c. sample mean d. central limit mean 7. A sample of n=25 scores is selected from a population with u = 100 with o = average, how much error would be expected between the sample mean and the population 20. On mean? 25 points b. 20 points 4 points d. 0.8 points a. C. 8. A random sample of n = 4 scores is selected from a population. Which of the following distributions definitely will be normal? The scores in the sample will form a normal distribution. b. The scores in the population will form a normal distribution. The distribution of sample means will form a normal distribution. d. Neither the sample, the population, nor the distribution of sample means will be normal. a. C. 9. What happens to the expected value of the standard error of the mean as sample size increases? It also increases. b. It also decreases. a. It stays constant. d. Need more information. C.…