Web Design ~ An online art gallery website has both free and premium accounts for users....

Web Design ~ An online art gallery website has both free and premium accounts for users. Over the past two years, the percentage of premium accounts has held steady at 35%. Designers have proposed some changes to the premium features but before they invest in the redesign, the website wants to know if the proportion of premium accounts is likely to change. They survey a random sample of 600 users and find that 225 of them say they would purchase a premium account if the new features were included. Write down the Null and Alternative hypotheses and then answer parts I, II, and II below. I. The parameter and statistic (sample proportion or point estimate) respectively are: II. Using the Normal Model Approach for a hypothesis test, calculate the Z - score and the p - value. Take the standard error, SE = 0.022 III. Draw the conclusion.

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orchestra answered 1 year ago

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