Imagine that you have population data with an average height of 5 feet 10 inches. Conduct a one-sample t-test to determine whether your sample population is significantly different from the general population.
Imagine that you have population data with an average satisfaction with a job score of 5. Conduct a one-sample t-test to determine whether your sample population is significantly more or less satisfied than the general population.

- Be sure to use the proper df and provide all the steps of calculations.
- Include an explanation of how you arrived at the critical value. Interpret the results using statistical analysis.
- With the analysis and results, explain whether you can conclude that your sample is taller or shorter than the general population.
- Describe how the results would be altered if you had twice as many subjects.

This solution is comprised of a detailed explanation of one sample t-test. This solution mainly discussed the question in which we defined null and alternative hypothesis, calculating the test statistics and p-value and provided the decision about the null hypothesis. Full calculations are shown for one sample t-test.

Assume that house prices in a neighborhood are normally distributed with a standard deviation $20,000. A random sample of 16 observations is taken. What is the probability that the sample mean differsfrom the population mean by more than $5,000?

A sample size of 16 was randomly drawn from a normal population. The mean of these 16 cases was 47.6875 and the sample standard deviation was 19.0883. At an alpha level of .05, does the mean of the population differ significantly from 60?

1)If you have a population that has a small sample, but does not meet all of the criteria for the nonparametric test how can you tell what test to use?
2)How might one know if a samples follow a normal distribution?
Please explain each in roughly 100 words please

This question is emphasized:
We can always generalize safely from a sample to a generalpopulation, We can always generalize safely from a sample to a target population, We can never generalize safely to a generalpopulation, or We can only generalize safely to the populationfrom which we have taken the sample.

A sample mean, sample size, and population standard deviation are given. Use the P-value approach to perform a one-mean z-test about the mean of the population from which the sample was drawn.
x bar= 78, n = 28, sigma = 11, Hnought: mu=72, Hone: mu>72 , alpha = 0.01
First find the proper z value then use this to find the

1. Why do you use N-1 rather than just N when calculating the standard deviation as estimated from a sample? How does the t-statistic differ from the z-statistic? When would you use a single-sample t-test?
2. What is an independent-sampletest? How does it differ from a single-sample t-test and a paired-sampletest?Why do yo

2. Suppose you want to test the claim that population mean miu=3.5. Given a sample size of n=34 and a level of significance of alpha=0.01, when should you reject Ho?
3. Find the standardized test statistic t for a sample with n=15, sample mean=8.7, s=0.8, and alpha =0.05 if Ho is less than or equal to 8.4.
4. Find the sta

A sample of 40 observations is selected from one approximately normal population. The sample mean is 102 and the sample standard deviation is 5. A sample of 50 observations is selected from a second source. The sample mean is 99 and the standard deviation is 6. Conduct a hypothesis test using the .04 level of significance to

Suppose that 9 observations are drawn from a normal population whose standard deviation is 2. The observations are: 15, 9, 13, 11, 8, 12, 11, 7, and 10. At 95% confidence, you want to determine whether the mean of the populationfrom which this sample was taken is significantly different from 10.
Compute the value of the tes