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Question 23 Note: You will answer the next 3 questions using the problem stated below. A couple is planning for their upcoming wedding. They have researched several wedding websites and found the average cost of a wedding in 2021 was $27,654. The couple is hoping that the average has decreased since 2021. To test their hypothesis, they surveyed 80 recently married couples and found the average cost of the weddings was $25,305. Assume the population standard deviation is $8532. Perform a hypothesis test, using a=0.01 to determine if the average cost of a wedding has decreased since 2021. For this question: Determine the Null and Alternative Hypothesis. 3 pts OH:s 27,654: Hu> 27,654 OH: >25,305 H.: 25,305 Ο Ha: με 27,654; Η: μ < 27,654 O Ho: 27.654; H₁: u 27,654
Question 24 4 pts A couple is planning for their upcoming wedding. They have researched several wedding websites and found the average cost of a wedding in 2021 was $27,654. The couple is hoping that the average has decreased since 2021. To test their hypothesis, they surveyed 80 recently married couples and found the average cost of the weddings was $25,305. Assume the population standard deviation is $8532. Perform a hypothesis test, using a=0.01 to determine if the average cost of a wedding has decreased since 2021. For this question: Compute the test zscore. Round your answer to 2 decimal places.
Question 25 A couple is planning for their upcoming wedding. They have researched several wedding websites and found the average cost of a wedding in 2021 was $27,654. The couple is hoping that the average has decreased since 2021. To test their hypothesis, they surveyed 80 recently married couples and found the average cost of the weddings was $25,305. Assume the population standard deviation is $8532. Perform a hypothesis test, using a=0.01 to determine if the average cost of a wedding has decreased since 2021. 4 pts For this question: Compute the pvalue. Round your answer to 3 decimal places.