A researcher was interested in testing the hypothesis to see if there was majority support for a new bill. She found a p-value equal to 0.002. What would be her conclusion?

Suppose the sampling distribution for average height for soccer players is normally distributed with a mean of 71.5 and a standard error of 2 inches.  Find the range of central 95% of sample means.

Suppose that you took a sample of 20 students at UF and asked them how many minutes they exercised yesterday. Suppose that you wanted to make a 90% confidence interval for the population mean. What value would you use for t?

A sample of 2,419 US residents were asked if they considered their home “very clean” right now. The 95% confidence interval was (0.0146. 0.0259). Is the following interpretation of the confidence interval correct? “We are 95% confident that the sample proportion of Americans that consider their home very clean is between 0.0146 and 0.0259.”  

For a confidence interval for the population mean, if you increase the confidence level, what happens to the width of the interval (everything else remains the same)?

Suppose the sampling distribution for average height for NFL players is normally distributed with a mean of 74 and a standard error of 2 inches.  Find the range of central 95% of sample means.

In 2014, the General Social Survey asked respondents who had stock options through their company if those stocks were traded at the New York Stock Exchange. The 95% confidence interval was (0.016, 0.0413). Is the following a correct or incorrect interpretation? “There is a 95% probability that the population proportion of people with stock options who have their stocks traded at the New York Stock Exchange is between 0.016 and 0.0413.”

The amount of calories in a small serving of French Fries at McDonalds is Normally distributed with a mean of 230 calories and a standard deviation of 25. Suppose that a random sample of 15 small servings was collected. What is the probability that the sample mean is greater than 240 calories?

For a 99% confidence interval for the population mean, what value of t would you use? n = 17

The average salary for an exercise specialist is $41,000. The standard deviation is about $3000. Suppose that a sample of 10 was taken, what is the approximate distribution of the sampling distribution of the sample mean?