Laptop Computers and Sperm CountStudies have shown that heating the scrotum by just 1°C can reduce sperm count and sperm quality, so men concerned about fertilityare cautioned to avoid too much time in the hot tub or sauna. A new study¹ suggests that men also keep their laptop computers offtheir laps. The study measured scrotal temperature in 29 healthy male volunteers as they sat with legs together and a laptopcomputer 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 D." The abbreviation SD stands for standard deviation. (Men who sitwith their legs together without a laptop computer do not show an increase in temperature.)¹Sheynkin, Y., et al., "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 thetemperature increases for the 29 men is symmetric andbell-shaped, find an interval that we expect to containabout 95% of the temperature increases.Round your answers to two decimal places.The interval istoi

From given Date we have : mean x=2.31, standard deviation is s=0.96

Answered: (a) If we assume that the distribution…

MATLAB: An Introduction with Applications

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The table below shows the relationship between the altitude of the atmosphere and corresponding temperature. Altitude (in feet) 25,000 20,000 15,580 12,902 Temperature (in degree Celsius) 10 16 25 30 What inference can be made from the above data? A.The temperature of the atmosphere decreases with the increase in the altitude. B.The temperature of the atmosphere decreases with the decrease in the altitude. C.The temperature of the atmosphere increases with the increase in the altitude. D.ANo inference can be made from the given data.
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OL th.. Frequency 8 9 0 T 10 20 30 40 LEAD 50 60 70 80 Data were collected on the lead levels of children of battery factory workers. The data are displayed in the histogram above. Choose the correct answer. The maximum lead level is less than 60 The median lead level (the level that exactly half the children exceed) is less than 30 There are 33 children in the data set. None of the other answers is true
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QUESTION FOUR The average prices of a Bath & Shower gel, a Body Moisturisers, a Deodorants and a Shaving cream were recorded in both 2011 and 2021 as below. (Prices are in R.) 2011 2021 4.1 4.2 Price (R) Number sold (in millions) Price (R) Number sold (in millions) Bath & Body Shower gel Moisturisers 17 7.5 23.7 8.2 7.3 4.2 12.5 5.1 Deodorants 5.5 12.6 8.7 13.5 Shaving cream 15.8 8.5 22.9 9.5 Find the Laspeyres price and quantity indices for 2021 using a base year of 2011 and interpret your answer Find the Paasche price and quantity indices for 2021 using a base year of 2011 and interpret your answer.
It is thought that prehistoric Indians did not take their best tools, pottery, and household items when they visited higher elevations for their summer camps. It is hypothesized that archaeological sites tend to lose their cultural identity and specific cultural affiliation as the elevation of the site increases. Let x be the elevation (in thousands of feet) for an archaeological site in the southwestern United States. Let y be the percentage of unidentified artifacts (no specific cultural affiliation) at a given elevation. Suppose that the following data were obtained for a collection of archaeological sites in New Mexico: x 5.75 6.75 7.75 8.50 9.25 y 27 16 46 62 95 What percentage of the variation in y cannot be explained by the corresponding variation in x and the least-squares line? Round your answer to the nearest tenth of a percent. 3.4% 18.4% 81.6% 9.7%

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(a) If we assume that the distribution of the temperature increases for the 29 men is symmetric and bell-shaped, find an interval that we expect to contain about 95% of the temperature increases. Round your answers to two decimal places.