STAT 101 SEU Coca Cola Research on Stockholders Questions

Question Description

I’m working on a statistics exercise and need an explanation to help me understand better.

Chapter (1)

Coke The Coca Cola Company has 366,000 stockholders and a poll is conducted by randomly selecting 30 stockholders from each of the 50 states. The number of shares held by each sampled stockholder is recorded.

a. Are the values obtained discrete or continuous?

b. Identify the level of measurement (nominal, ordinal, interval, ratio) for the sample data.

c. Which type of sampling (random, systematic, convenience, stratified, cluster) is being used? d. If the average (mean) number of shares is calculated, is the result a statistic or a parameter?

Chapter (2)

Compute the cumulative frequency.
Convert the given frequency distribution to a relative frequency distribution.

Chapter (3)

For a given sample: 2, 8, 2, 3, 10, 7, 5, 1, 6, 2, and 5.

Compute the following: mean, median, mod, and standard deviation.

Chapter (4)

If we randomly select one Senator, what is the probability of:

Getting a Republican, given that a male was selected?
If we randomly select one Senator, what is the probability of getting a male, given that a Republican was selected?

Chapter (5)

Assume that a procedure yields a binomial distribution with a trial repeated 4 times.

Find the probability of 3 successes given the probability 0.05 of success on a given trial?
Calculate the mean and standard deviation?

Chapter (6)

Chapter (7)

Use the given confidence level to find the confidence interval for a population mean given the following:

Chapter (8)

The Genetics and IVF Institute conducted a clinical trial of the XSORT method designed to increase the probability of conceiving a girl. As this book was being written, 325 babies were born to parents using the XSORT method, and 295 of them were girls. Use the sample data with a 0.01 significance level to test the claim that with this method, the probability of a baby being a girl is greater than 0.5

Chapter (10)

For the given data, find the following:

Correlation of coefficient r?
Is there a correlation between x and y?
Regression equation?

Chapter (11)

Chapter (12)

Construct ANOVA table for the following data:

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