Statistics:

An experiment is performed to determine if the growth rate of algae depends on the spectrum of the light it is exposed to. The growth rate is measured for four different spectral combinations, labeled A through D; six different growth rate measurements are taken for each spectral combination. These measured rates are

Question 1 1 pts Suppose you work for a company that manufactures coaxial cable. (This is the kind of cable that you use to connect your cable TV box to the wall connector.) The nominal impedance of the cable should be 50 0. Your job is to insure that the mean impedance of manufactured cables is 50 0. From prior experience, you can assume that the standard deviation of impedance values is 2.4 0. How many cable samples would you need to measure to have a 96% confidence that the mean impedance is within 0.3 0 of 50 0? O 10 O 64 O 75 O 197 O 270 O 282 O 408 419 O 537 O 574\fQuestion 1 1 pts Is there a difference between the growth rates of the algae with the four different spectra? O Yes, there is a difference between between growth rates. O No, there is no difference between growth rates. Question 2 1 pts What is the P value associated with your decision? 0 0.009 O 0.025 O 0.041 O 0.058 O 0.073 O 0.124 O 0.142 O 0.156 O 0.180 O 0.196\fQuestion 1 Do the ANOVA computations on this data; what is the P-value? O 0.031 O 0.126 O 0.406 O 0.446 O 0.461 O 0.472 O 0.691 O 0.717 O 0.786 O 0.914Question 2 1 pts On the basis of this P-value, do you reject the hypothesis thatthe means of the 4 treatments are the same at an a = 0.05confidence level? O Yes O No\fQuestion 3 1 pts Do the ANOVA computations on this data; what is the P-value? O 0.210 O 0.227 O 0.319 O 0.368 O 0.379 O 0.432 O 0.706 O 0.865 O 0.925 O 0.955 Question 4 1 pts On the basis of this P-value, do you reject the hypothesis thatthe means of the 4 treatments are the same at an a = 0.05confidence level? O Yes O No