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1.In a toxicological study that investigated the impact of copper levels on macroinvertebrates, 345 organisms were exposed to a low level of copper. Of the 345 organisms, 67 lower smaller rates of reproduction, while the rest did not show any adverse effects. Another group of 452 organisms was used as the control group and were not exposed to copper. In the control group, 35 organisms showed lower rates of reproduction and the rest did not show any adverse effects. Does this data indicate that exposure to copper is associated with lower rates of reproduction? Test the hypotheses at the 99% confidence level.

2.Rocky Mountain National Park. At 5 weather stations on Trail Ride Road in Rocky Mountain National Park, the peak wind gusts (in miles per hour) for January and April are recorded and are provided in the data attached below.The measurements are taken at the same time of day and by the same person to ensure that all measurement conditions are the same. Are the peak wind gusts higher in January than in April?Use = 0.01?(Data attached below.)

Data:

WEATHER STATIONMonthWind speed(m/hr) 1January139 2January122 3January126 4January64 5January78 1April 104 2April 113 3April 100 4April 88 5April 61 

3. A random sample of 46 adult coyotes in a region of northern Minnesota was collected. For each coyote, its age was recorded and attached in the data below. However, it is thought that the overall population mean age of coyotes is = 1.75 years.Do the data indicate that coyotes in this region of northern Minnesota tend to live longer than the average of 1.75 years?Use = 0.01.(Data attached below.)

Data:

coyote_IDage 12.4 22.4 31.3 42.7 53.2 60.6 71.3 82.8 91.6 101.4 111.6 121.9 131.0 143.5 152.5 163.3 173.7 180.8 193.3 201.1 211.9 221.6 233.2 241.4 250.3 261.1 272.0 281.4 292.1 303.4 312.0 320.9 332.7 343.0 351.3 362.1 371.5 380.9 391.3 402.4 412.2 422.1 432.8 442.6 451.9 461.4