here is the data Cyprus Pine Cedar 4.102 4.092 4.034 3.952 4.034 3.952 4.126 4.0
ID: 3042102 • Letter: H
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here is the data
Cyprus Pine Cedar 4.102 4.092 4.034 3.952 4.034 3.952 4.126 4.026 4.136 4.028 4.15 3.976 4.166 4.004 4.124 3.956 3.988 3.966 4.032 3.948 3.998 4.008 4.018 3.982 3.994 3.98 4.008 3.97 4 4.028 3.984 4.008 4.034 3.978 3.99 3.96 4.054 4.018 4.038 3.936 4.056 3.944 4.038 3.984 4.03 3.988 4.018 4.024 4.012 3.982 4.068 3.96 4.066 3.972 4.022 3.992 4.06 3.972 4.046 4 4.024 3.994 4.07 4.006 4.032 3.95 4.062 3.992 4.056 4.046 4.036 4.028 4.062 4.026 4.036 4.014 4.036 4.03 4.048 4.068 4.052 4.04 4.066 4.02 4.102 3.926 4.052 3.992 4.054 4.03 4.026 4.026 3.998 4.034 4.006 4.012 4.022 3.984 4.018 4.018 4.064 4.042 4.058 4.036 4.022 4.03 3.964 3.966 4.076 3.964 4.044 3.988 4.056 3.994 4.062 3.984 4.03 3.988 4.056 3.988 4.084 4.002 4.07 3.976 4.076 3.956 4.052 3.932 4.062 3.952 4.1 3.958 4.102 3.984 4.042 3.97 4.07 3.978 4.042 3.974 4.054 3.974 4.058 3.934 4.006 3.984 4.036 4.008 4.07 3.97 4.024 3.984 4.074 4.046 4.06 3.988 4.062 4.002 4.06 3.966 4.018 3.97 4.038 4 4.032 3.958 4.04 3.964 4.034 3.982 4.066 3.972 4.022 4.03 4.054 4.012 4.03 4.02 4.006 4 3.992 4.022 4.036 4.028 4.05 3.992 4.038 4.026 4.114 3.986 3.992 4.008 4.062 4.032 4.026 4.024 3.986 4.03 4.012 3.998 4.038 3.986 4.018 3.98 4.056 4.032 4.056 4.018 4.044 4 4.06 4.018 4.066 3.966 4.072 4.014 4.034 4.006 4.086 4.018 4.046 4.012 4.044 3.988 4.024 4.036 4.022 4.006 4.016 4.02 4.026 4.014 4.04 4.04 4.01 4.024 4.028 4.044 4.014 4.028 4.038 4.028 4.006 3.98 4.042 3.952 4.028 3.934 4.042 3.94 4.044 4.028 4.022 4.024 3.946 4.004 3.962 3.968 4.014 3.984 4 3.952 4.026 4.056 3.988 4.002 4.04 4.14 4.04 3.996 4.02 4.002 4.032 4.032 4.03 4.036 4.04 4.052 4.014 3.996 4.008 4.032 4.046 4.002 4.072 3.94 4.002 3.972 4.02 4.056 4.002 4.01 4.032 4.036 4.02 4.026 3.988 4.1 3.984 4.084 4.02 4.104 3.998 4.04 3.996 4.03 3.988 4.078 3.992 4.018 3.962 4.11 3.984 4.086 4.036 4.066 3.98 4.036 3.956 4.038 3.964 4.026 3.988 4.064 4.01 3.978 3.996 4.028 3.994 4.016 3.98 4.156 3.974 4.116 4.014 4.092 4.036 4.108 4.004 4.102 3.98 4.046 4.004 4.1 3.982 4.08 3.98 4.056 3.974 4.068 3.995 4.068 3.998 4.028 3.984 4.024 3.986 4.036 3.974 4.06 3.992 4.008 3.962 3.988 4.008 3.95 4.032 3.936 4.022 3.928 3.978 3.956 4.08 3.93 3.976 4.03 3.972 3.962 4.014 4.046 3.98 4.026 4.002 4.002 3.974 3.978 4.048 3.976 4.012 4.038 4.012 3.898 4.018 4.018 4.018 4.038 3.994 4.066 3.976 4.05 3.95 4.04 4 4.084 4.014 4.06 4 4.104 4.004 4.098 3.988 4.104 4.048 4.014 3.988 4.02 3.974 4.06 3.974 3.95 3.994 3.986 4.016 4.05 4.004 3.99 4 3.986 4.012 4.018 3.998 4.032 3.986 4.002 3.998 4.006 4.036 3.96 4 3.986 4.022 3.95 4.032 3.978 4.02 4.008 3.996 4.006 4 3.946 4.014 3.998 4.028 3.944 3.984 3.942 3.998 4.046 4.004 4.014 4.024 3.974 4.03 3.926 3.988 3.892 4.01 3.942 4.026 3.946 4.016 4.034 4.01 3.954 4.048 3.972 3.982 3.984 4.042 3.992 4.016 3.976 3.992 3.966 4.006 3.94 4.002 4.004 3.996 3.95 3.978 3.916 4.016 4.006 4.064 4.07 4.024 4.04 4.002 4.026 4.02 4.006 4.014 4.056 3.986 4.024 4.06 4.018 4.072 4.006 4.064 3.954 4.076 4.03 4.024 4.034 4.002 4.004 4.064 4.034 4.052 3.962 4.044 3.94 4.046 3.918 4.066 3.944 3.996 3.886 4.046 3.866 4.034 3.974 4.028 4.142 4.076 4.064 4.066 3.95 4.086 3.952 4.058 4.04 4.036 4.114 4.024 4.054 4.096 4.014 4.078 3.934 4.05 3.926 4.06 3.958 3.992 3.972 4.022 3.962 4.016 3.962 4.022 3.966 4.028 4.032 4.072 4.01 4.064 3.948 3.966 4.014 4.016 4.048 4.032 4.032 4.024 3.958 4.048 3.98 4.038 4.062 4.018 3.936 3.998 4 4.032 4.054 3.962 4.056 4.016 3.952 4.048 4 4.022 3.964 4.04 3.972 4.034 3.958 4.066 4.05 4.036 3.962 3.968 4.062 4.034 4.042 4.016 4.088 4.052 3.968 4.024 3.958 4.006 4.026 3.98 4.004 3.992 3.954 4.042 3.984 4.012 4.074 3.994 4.07 3.992 4.088 4.032 3.946 4.018 3.96 4.052 3.996 4.024 4.004 4.046 4.022 3.998 3.982 4.068 3.936 4.074 3.93 4.006 3.93 4.084 4.028 4.034 3.992 4.004 3.988 4.04 3.994 4.008 3.994 3.998 4.044 4.086 4.034 4.08 4.022 4.024 4.048 4.066 3.98 4.012 4.044 4.042 4.012 3.994 3.966 4.036 4.028 3.972 3.99 3.98 3.992 3.976 3.998 4.002 3.976 3.944 4.012 3.992 3.994 3.966 3.998 3.982 4.046 4.044 3.998 3.968 3.998 4.04 4.03 3.988 3.982 Question 2 A busy landscaping supplies company sells wood chips for garden mulch. The mulch is sold by the cubic meter and delivered to households in a small truck. Each truckload is expected to be 4 cubic metres. The company decides to conduct an audit of actual load volumes by smoothing and measuring samples of loads for a two-week period. The data file MULCH contains the volume (in cubic metres) from a sample of 368 truckloads of cypress pine mulch and from 330 truckloads of cedar wood chips. For the cypress pine wood chips, construct a 95% confidence interval estimate of the mean volume. a) b) For the cedar wood chips, construct a 95% confidence interval estimate of the mean volume. c Evaluate whether the assumption needed for (a) and (b) has been seriously violated Based on the results of (a) and (b), what conclusions can you reach concerning the mean volume of the cypress pine and cedar wood chips? d)Explanation / Answer
Here,
(A) Mean of cyprus wine wood chips volume xc= 4.02422
Standard deviation of cyprus wine wood chips Volume sc = 0.0347
95% confidence interval = x +- tn-1, 0.05 s/ n
= 4.02422 +- 1.9664 * (0.0347/368)
= 4.02422 +- 1.9664 * 0.00181
= (4.0207, 4.0278)
(b)
Mean of cidar wood chips volume xc= 4.00404
Standard deviation of cyprus wine wood chips Volume sc = 0.0467
95% confidence interval = x +- tn-1, 0.05 s/ n
= 4.00404 +- 1.9664 * (0.0467/368)
= 4.02422 +- 1.9672 * 0.00257
= (4.0192, 4.0293)
(c) Yes, as both the confidence interval doesn't consist the value of 4 .. So, we can say that the weight parameter are seriously violated.
(D) The mean volume of Cedar wood and cyprus pine wood is above 4 cubic meters as observed where the Mean volume of Cyprus wine is higher than cedar wood volume.
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