TextRequest reports that adults 18-24 years old send and receive 128 texts every day. Suppose we take a sample of 25-34 year olds to see if their mean number of daily texts differs from the mean for 18-24 year olds reported by TextRequest. A sample of thirty showed a sample mean of 118.6 texts per day. Assume a population standard deviation of 33.17 texts per day.

Conduct the hypothesisusing thep-value approach. Use = 0.05

(Please include all the 7 steps in hypothesis testing outlined)

p-value Approach

• Develop the null and alternative hypothesis
• Specify the level of significance,
• Choose the test statistic (z or t)
• Calculate the test statistic
• Use the value of the test statistic to compute the p-value.
• Reject H0 if p-value
• Interpret the statistical conclusion in the context of the problem.