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Author Question: A consumer product magazine recently ran a story concerning the increasing prices of digital ... (Read 92 times)

appyboo

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on: Feb 14, 2020

Question 1

Researchers have claimed that the average number of headaches per student during a semester of Statistics is 10. Statistics students believe the average is higher. In a sample of n = 24 students the mean is 15 headaches with a deviation of 2. Which of the following represent the null and alternative hypotheses necessary to test the students' belief?
◦ H0: μ = 10 vs. Ha: μ ≠ 10
◦ H0: μ = 10 vs. Ha: μ > 10
◦ H0: μ < 10 vs. Ha: μ = 10
◦ H0: μ = 10 vs. Ha: μ < 10

Question 2

A consumer product magazine recently ran a story concerning the increasing prices of digital cameras. The story stated that digital camera prices dipped a couple of years ago, but are now beginning to increase in price because of added features. According to the story, the average price of all digital cameras a couple of years ago was $215.00. A random sample of cameras was recently taken and entered into a spreadsheet. It was desired to test to determine if that average price of all digital cameras is now more than $215.00. What null and alternative hypothesis should be tested?
◦ H0: μ = 215 vs. HA: μ ≠ 215
◦ H0: μ = 215 vs. HA: μ < 215
◦ H0: μ ≥ 215 vs. HA: μ < 215
◦ H0: μ = 215 vs. HA: μ > 215
Statistics ¦ McClave, Sincich, Tamarack ¦ 12th Edition
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Marked as best answer by appyboo on Feb 14, 2020

leahchrapun

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Reply #1 on: Feb 14, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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appyboo

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Reply 2 on: Feb 14, 2020
Gracias!

xiaomengxian

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Reply 3 on: Yesterday
Excellent

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