Given the following table: SALINITY (B) TEMPERATURE (A) 10 25 25 70.3 465.7 35 408.0 274.7 Calculate the following simple effects: a) μ(A1B) b) ч(AB2) c) μ(A) d) μ(AB)
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- Estimate the age of a newly discovered fossil for which the ratio of carbon-14 to carbon-12 is R=1/1014.In 1906, San Francisco experienced an intense earthquake with a magnitude of 7.8 on the Richter scale. In 1989, the Loma Prieta earthquake also affected the San Francisco area, and measured 6.9 on the Richter scale. Compare the intensities of the two earthquakes.Radon is a gas emitted from the ground that can collect in houses in buildings. At certain levels it can cause lung cancer. Radon concentrations are measured in picocuries per liter (pCi/L). A radon level of 4 pCi/L is considered “acceptable” Radon levels in a house vary from week to week. In one house, a sample of 6 weeks had the following readings for radon level (in pCi/L): 1.9 2.8 3.9 3.9 4.2 5.7 Find the variance and standard deviation (definitional formula). Show your work using a table.
- F. 2.5(JK) 12 What is HL? = 7H %3Db. The concentration of the hydrogen ion in a sample of acid rain known to kill fish is 3.2. 10-5 mole per liter. Find the pH of this acid rain to the nearest tenth.The following data refers to yield of tomatoes (kg/plot) for four different levels of salinity. Salinity level here refers to electrical conductivity (EC), where the chosen levels were EC = 1.6, 3.8, 6.0, and 10.2 nmhos/cm. (Use i = 1, 2, 3, and 4 respectively.) 1.6: 59.1 53.1 56.9 63.8 58.1 3.8: 55.6 59.1 52.8 54.1 6.0: 51.6 48.6 53.5 49.2 10.2: 44.7 48.9 40.9 47.5 46.5 Calculate the test statistic. (Round your answer to two decimal places.)
- The following data refers to yield of tomatoes (kg/plot) for four different levels of salinity. Salinity level here refers to electrical conductivity (EC), where the chosen levels were EC = 1.6, 3.8, 6.0, and 10.2 nmhos/cm. (Use i = 1, 2, 3, and 4 respectively.) 1.6: 59.3 53.9 56.5 63.1 58.6 3.8: 55.4 59.9 52.2 54.6 6.0: 51.2 48.3 53.1 48.9 10.2: 44.7 48.2 41.1 47.1 46.9 Use the F test at level a = 0.05 to test for any differences in true average yield due to the different salinity levels. State the appropriate hypotheses. Hạ: at least two us are equal O Ho: H = z = 43 = Ha H: all four u,'s are unequal O Ho: H = uz = H3 - Ha Hạ: at least two 4's are unequal H: all four u,'s are equal Calculate the test statistic. (Round your answer to two decimal places.)The following data refers to yield of tomatoes (kg/plot) for four different levels of salinity. Salinity level here refers to electrical conductivity (EC), where the chosen levels were EC = 1.6, 3.8, 6.0, and 10.2 nmhos/cm. (Use i = 1, 2, 3, and 4 respectively.) 1.6: 59.8 53.5 56.1 63.6 58.2 3.8: 55.3 59.3 52.8 54.5 6.0: 51.4 48.2 53.9 48.6 10.2: 44.7 48.8 40.8 47.2 46.1 n USE SALT Apply the modified Tukey's method to identify significant differences among u's. (Round your answers to two decimal places.) W12 W13 = W14 = W23 = W24 = W34 = Which pairs are significantly different? (Select all that apply.) O the 1.6 group and the 3.8 group O the 1.6 group and the 6.0 group O the 1.6 group and the 10.2 group O the 3.8 group and the 6.0 group O the 3.8 group and the 10.2 group O the 6.0 group and the 10.2 group O There are no significant differences.The following data refers to yield of tomatoes (kg/plot) for four different levels of salinity. Salinity level here refers to electrical conductivity (EC), where the chosen levels were EC = 1.6, 3.8, 6.0, and 10.2 nmhos/cm. (Use i = 1, 2, 3, and 4 respectively.) 1.6: 59.9 53.5 56.7 63.2 58.6 3.8: 55.6 59.6 52.6 54.5 6.0: 51.2 48.6 53.8 48.9 10.2: 44.3 48.4 41.0 47.9 46.5 In USE SALT Use the F test at level a = 0.05 to test for any differences in true average yield due to the different salinity levels. State the appropriate hypotheses. O Ho: H1 = H2 = !3 = H4 H: all four u's are unequal O Ho: H1 = H2 = H3 = H4 H: at least two u's are unequal O Ho: H1 # Hq # Hz# H4 H: all four u's are equal O Ho: H1* H2 * H3# H4 H: at least two u's are equal Calculate the test statistic. (Round your answer to two decimal places.) f = What can be said about the P-value for the test? O P-value > 0.100 O 0.050 < p-value < 0.100 O 0.010 < p-value < 0.050 O 0.001 < P-value < 0.010 O P-value < 0.001
- The following data refers to yield of tomatoes (kg/plot) for four different levels of salinity. Salinity level here refers to electrical conductivity (EC), where the chosen levels were EC = 1.6, 3.8, 6.0, and 10.2 nmhos/cm. (Use i = 1, 2, 3, and 4 respectively.) 1.6: 59.4 53.4 56.3 63.2 58.4 3.8: 55.9 59.7 52.7 54.2 6.0: 51.7 48.2 53.9 49.0 10.2: 44.3 48.3 40.7 47.2 46.7 W23 = W 24 = W34 = USE SALT Apply the modified Tukey's method to identify significant differences among us. (Round your answers to two decimal places.) W12 = W13 = W14= Which pairs are significantly different? (Select all that apply.) Othe group and the 3.8 group the 1.6 group and the 6.0 group the 1.6 group and the 10.2 group the 3.8 group and the 6.0 group the 3.8 group and the 10.2 group O the 6.0 group and the 10.2 group There are no significant differences.Compute for the standard elemental time using the given data: Actual Time = 10.5 sec, Performance Rating = 1.05, Fatigue Allowance = 15% Select one: a. None of the Above O b. 10.12 Sec O c. 1.65 sec O d. 12.68 sec O e. 9.59 secPeriodically, the county Water Department tests the drinking water of homeowners for contaminants such as lead and copper. The lead and copper levels in water specimens collected in 1998 for a sample of 10 residents of a subdevelopement of the county are shown below. lead (g/L) 2.9 0.2 5.1 4.2 5.5 1.2 0.133 0.774 0.214 0.671 0.444 0.234 0.357 0.761 0.176 0.888 (a) Construct a 99% confidence interval for the mean lead level in water specimans of the subdevelopment. OSMOSO copper (mg/L) 0.3 1.3 4.9 1.7 (b) Construct a 99% confidence interval for the mean copper level in water specimans of the subdevelopment. OSHSO
