Problem I) DDT concentrations were measured in gulls. The data have a mean of 10.1 ppm and a standard deviation of 2.0 ppm. Test the hypothesis that DDT concentrations follow a normal distribution. U...
Problem I) DDT concentrations were measured in gulls. The data have a mean of 10.1 ppm and a standard deviation of 2.0 ppm. Test the hypothesis that DDT concentrations follow a normal distribution. Use a 5% level of significance DDT (ppm Z1 Number of gulls 10 36 75 72 50 7 6.0 6.0-8.0 8.0-10.0 10.0-12.0 12.0-14.0 > 14.0 2.05 1.05 0.05 0.95 1.95 2.05 1.05 0.05 0.95 1.95 What's the probability of finding DDT concentration less than or equal 6.0ppm? 1. a. 0.0202 b. 0.3332 c. 0.0256 d. 0.1280 2. What's the probability of finding DDT concentration between 8.0-10.0 ppm? a. 0.0202 b. 0.3332 c. 0.0256 d. 0.1280 3. What's the probability of finding DDT concentration greater than 14.0 ppm? a. 0.0202 b. 0.33312 c. 0.0256 d. 0.1280 4. What's the Expected Frequency of DDT concentration less than or equal 6.0ppm? a. 6.40 b. 5.05 с. 87.20 d. 83.30
Problem I) DDT concentrations were measured in gulls. The data have a mean of 10.1 ppm and a standard deviation of 2.0 ppm. Test the hypothesis that DDT concentrations follow a normal distribution. Use a 5% level of significance DDT (ppm Z1 Number of gulls 10 36 75 72 50 7 6.0 6.0-8.0 8.0-10.0 10.0-12.0 12.0-14.0 > 14.0 2.05 1.05 0.05 0.95 1.95 2.05 1.05 0.05 0.95 1.95 What's the probability of finding DDT concentration less than or equal 6.0ppm? 1. a. 0.0202 b. 0.3332 c. 0.0256 d. 0.1280 2. What's the probability of finding DDT concentration between 8.0-10.0 ppm? a. 0.0202 b. 0.3332 c. 0.0256 d. 0.1280 3. What's the probability of finding DDT concentration greater than 14.0 ppm? a. 0.0202 b. 0.33312 c. 0.0256 d. 0.1280 4. What's the Expected Frequency of DDT concentration less than or equal 6.0ppm? a. 6.40 b. 5.05 с. 87.20 d. 83.30