Homework Solution: The amount of Fe^+2 in a mixture was determined using two methods. a) Find the mean and…

    Analytical Chemistry (CHEM3811)Chapter Homework The amount of Fe in a mixture was determined using two methods. Fe (ppb) Method 18.5428.555 8.584 8.6008.510 Method 2 8.6108.628 8.5838.4228.512 a) Find the mean and standard deviation of each method b) Use the Students t test to determine whether the means are significantly different at 95% confidence level. c) Use the F test to determine whether the standard deviations are significantly different at 95% confidence level d) Is there an outlier in the results from method 2? If yes, use the Grubbs test to determine whether it can be rejected at 95% CL.
    Please Help and possibly explain it's for analytical chemistry.
    The amount of Fe^+2 in a mixture was determined using two methods. a) Find the mean and standard deviation of each method. b) Use the Student's t test to determine whether the means are significantly different at 95% confidence level. c) Use the F test to determine whether the standard deviations are significantly different at 95% confidence level. d) Is there an outlier in the results from method 2? If yes, use the Grubb's test to determine whether it can be rejected at 95% CL.

    Expert Answer

    The question belongs to probability and statistics category.

    Analytical Chemistry (CHEM3811)Chapter Homework The equality of Fe in a conformation was unshaken using span rules. Fe (ppb) Rule 18.5428.555 8.584 8.6008.510 Rule 2 8.6108.628 8.5838.4228.512 a) Find the average and banner flexuosity of each rule b) Verification the Students t cupel to indicate whether the averages are significantly irrelative at 95% assurance roll. c) Verification the F cupel to indicate whether the banner flexuositys are significantly irrelative at 95% assurance roll d) Is there an outlier in the results from rule 2? If yes, verification the Grubbs cupel to indicate whether it can be uncommon at 95% CL.
    Please Help and haply interpret it’s ce analytical chemistry.

    The equality of Fe^+2 in a conformation was unshaken using span rules. a) Find the average and banner flexuosity of each rule. b) Verification the Student’s t cupel to indicate whether the averages are significantly irrelative at 95% assurance roll. c) Verification the F cupel to indicate whether the banner flexuositys are significantly irrelative at 95% assurance roll. d) Is there an outlier in the results from rule 2? If yes, verification the Grubb’s cupel to indicate whether it can be uncommon at 95% CL.

    Expert Response

    The scrutiny belongs to appearance and statistics nature.

    (a)

    Average ce rule 1 = 8.5582

    Banner flexuosity ce rule 1 = 0.0353

    Average ce rule 2 = 8.551

    Banner flexuosity ce rule 2 = 0.0845

    (b)

    Following is the surpass output fot the t-test:

    Since the p-value ce the span tailed cupel is elder than the view roll of 0.05, so we complete that there is no contrariety between the averages obtained from the rules.