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Author Question: In a controlled laboratory environment, a random sample of 10 adults and a random sample of 10 ... (Read 116 times)

yoooooman

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on: Feb 14, 2020

Question 1

A confidence interval for (μ1 - μ2) is (5, 8). Which of the following inferences is correct?
◦ μ1 < μ2
◦ no significant difference between means
◦ μ1 > μ2
◦ μ1 = μ2

Question 2

In a controlled laboratory environment, a random sample of 10 adults and a random sample of 10 children were tested by a psychologist to determine the room temperature that each person finds most comfortable. The data are summarized below:



Suppose that the psychologist decides to construct a 99% confidence interval for the difference in mean comfortable room temperatures instead of proceeding with a test of hypothesis. The 99% confidence interval turns out to be (-2.9, 3.1). Select the correct statement.
◦ It cannot be concluded at the 99% confidence level that there is actually a difference between the true mean comfortable room temperatures for the two groups.
◦ It can be concluded at the 99% confidence level that the true mean room temperature for adults exceeds that for children.
◦ It can be concluded at the 99% confidence level that the true mean comfortable room temperature is between -2.9 and 3.1.
◦ It can be concluded at the 99% confidence level that the true mean comfortable room temperature for children exceeds that for adults.
Statistics ¦ McClave, Sincich, Tamarack ¦ 12th Edition
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Marked as best answer by yoooooman on Feb 14, 2020

ergserg

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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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yoooooman

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Reply 2 on: Feb 14, 2020
Thanks for the timely response, appreciate it

smrtceo

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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