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A company wants to test if the mean sales of Product A are higher than the mean sales of Product B. The hypotheses are specified as follows: Null Hypothesis (H0): The mean sales of Product A are less than or equal to the mean sales of Product B. Alternative Hypothesis (Ha): The mean sales of Product A are higher than the mean sales of Product B. After conducting a one-tailed t-test, the company obtains a p-value of 0.07. Using an alpha level of 0.05, what conclusion should the company draw?

Explain the difference between a sample and a population. INCLUDE THIS ANSWER IN THE FILE YOU UPLOAD.

What does a low p-value indicate in hypothesis testing?

Which of the following statements best describes “statistical significance” in the context of hypothesis testing?

Give an example of 6 numbers where their mean is greater than their median.  Give both the mean and median in your result. INCLUDE THIS ANSWER IN THE FILE YOU UPLOAD.

Sketch a scatter plot of the following data: x 12 14 12 16 17 16 y 4 6 5 8.5 9.5 8 Based on the data and your graph, are you seeing a positive or negative correlation? INCLUDE THIS ANSWER IN THE FILE YOU UPLOAD.

A correlation coefficient of -0.49 indicates which of the following?

The redness of a sunset sky is evidence that

When light passes from air into a glass lens, the speed of light in the glass is

Why is the following figure not correct? delete2.png