NileyPLUS Lock, Statistics: Unlocking the Power of Data, 2e
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Module 2 Homework
Unit A Review
Exercise. 45
Chapter 2. Section
1. Exercise 022bed
Chapter 2 Section
Studies have shown that heating the scrotum by just l'c can reduce sperm count and sperm quality, so men concerned about fertility are cautioned to avoid too much
time in the hot tub or sauna. A new study suggests that men also keep their laptop computers off their laps. The study measured scrotal temperature in 29 healthy
male volunteers as they sat with legs together and a laptop computer on the lap. Temperature increase in the left scrotum over a 60-minute session is given as
2.31 +0.96 and a note tells us that "Temperatures are given as "C; values are shown as mean USD." The abbreviation SD stands for standard deviation (Men who
sit with their legs together without a laptop computer do not show an increase in temperature.)
1Sheynkin, Y., et "Protection from scrotal hyperthermia in laptop computer users," Fertility and Sterility, February 2011; 92(2): 647-651.
(a) If we assume that the distribution of the temperature increases for the 29 men is symmetric and bell-shaped ind an interval that we expect to contain about 95.5
of the temperature increases.
Round your answers to two decimal places. .
025 defe
Chapter 2. Section
1. Eris021
Chapter 2. Section
2. Exercise 026
Chapter 2 Section
Exercise 028
Chapter 2 Section
2. Exercise 061
Chapter 2 Section
2. Exercise 064
3 Chapter Section
2. Exercise 066
Chapter 2. Section
The interval is
to
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UNK TO TEXT
(b) Find the 2-score for one of the men, who had a temperature increase of 4.9".
Chapter 2 Section
2. Exercise OZ3
Chapter 2. Section
2. OZZ
Chapter 2. Section
3. Exercise 105
Chapter 2. Section
3.Exer LOZ
Round your answer to two decimal places
2-score -
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