View the step-by-step solution to: 10.83 The manufacturer of Boston and Vermont asphalt shingles

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10.83 The manufacturer of Boston and Vermont asphalt shingles knows that product weight is a major factor in the customer’s perception of quality. Moreover, the weight represents the amount of raw materials being used and is therefore very important to the company from a cost standpoint. The last stage of the assembly line packages the shingles before they are placed on wooden pallets. Once a pallet is full (a pallet for most brands holds 16 squares of shingles), it is weighed, and the measurement is recorded. The data file (Pallet) contains the weight (in pounds) from a sample of 368 pallets of Boston shingles and 330 pallets of Vermont shingles. Completely analyze the differences in the weights of the Boston and Vermont shingles, using α = 0.05. File (Pallet): Boston Vermont 3202 3792 3134 3652 3134 3652 3226 3726 3236 3728 3250 3676 3266 3704 3224 3656 3088 3666 3132 3648 3098 3708 3118 3682 3094 3680 3108 3670 3100 3728 3084 3708 3134 3678 3090 3660 3154 3718 3138 3636 3156 3644 3138 3684 3130 3688 3118 3724 3112 3682 3168 3660 3166 3672 3122 3692 3160 3672 3146 3700 3124 3694 3170 3706 3132 3650 3162 3692 3156 3746 3136 3728 3162 3726 3136 3714 3136 3730 3148 3768 3152 3740 3166 3720 3202 3626 3152 3692 3154 3730 3126 3726 3098 3734 3106 3712 3122 3684 3118 3718 3164 3742 3158 3736 3122 3730 3064 3666 3176 3664 3144 3688 3156 3694 3162 3684 3130 3688 3156 3688 3184 3702 3170 3676 3176 3656 3152 3632 3162 3652 3200 3658 3202 3684 3142 3670 3170 3678 3142 3674 3154 3674 3158 3634 3106 3684 3136 3708 3170 3670 3124 3684 3174 3746 3160 3688 3162 3702 3160 3666 3118 3670 3138 3700 3132 3658 3140 3664 3134 3682 3166 3672 3122 3730 3154 3712 3130 3720 3106 3700 3092 3722 3136 3728 3150 3692 3138 3726 3214 3686 3092 3708 3162 3732 3126 3724 3086 3730 3112 3698 3138 3686 3118 3680 3156 3732 3156 3718 3144 3700 3160 3718 3166 3666 3172 3714 3134 3706 3186 3718 3146 3712 3144 3688 3124 3736 3122 3706 3116 3720 3126 3714 3140 3740 3110 3724 3128 3744 3114 3728 3138 3728 3106 3680 3142 3652 3128 3634 3142 3640 3144 3728 3122 3724 3046 3704 3062 3668 3114 3684 3100 3652 3126 3756 3088 3702 3140 3840 3140 3696 3120 3702 3132 3732 3130 3736 3140 3752 3114 3696 3108 3732 3146 3702 3172 3640 3102 3672 3120 3756 3102 3710 3132 3736 3120 3726 3088 3800 3084 3784 3120 3804 3098 3740 3096 3730 3088 3778 3092 3718 3062 3810 3084 3786 3136 3766 3080 3736 3056 3738 3064 3726 3088 3764 3110 3678 3096 3728 3094 3716 3080 3856 3074 3816 3114 3792 3136 3808 3104 3802 3080 3746 3104 3800 3082 3780 3080 3756 3074 3768 3095 3768 3098 3728 3084 3724 3086 3736 3074 3760 3092 3708 3062 3688 3108 3650 3132 3636 3122 3628 3078 3656 3180 3630 3076 3730 3072 3662 3114 3746 3080 3726 3102 3702 3074 3678 3148 3676 3112 3738 3112 3598 3118 3718 3118 3738 3094 3766 3076 3750 3050 3740 3100 3784 3114 3760 3100 3804 3104 3798 3088 3804 3148 3714 3088 3720 3074 3760 3074 3650 3094 3686 3116 3750 3104 3690 3100 3686 3112 3718 3098 3732 3086 3702 3098 3706 3136 3660 3100 3686 3122 3650 3132 3678 3120 3708 3096 3706 3100 3646 3114 3698 3128 3644 3084 3642 3098 3746 3104 3714 3124 3674 3130 3626 3088 3592 3110 3642 3126 3646 3116 3734 3110 3654 3148 3672 3082 3684 3142 3692 3116 3676 3092 3666 3106 3640 3102 3704 3096 3650 3078 3616 3116 3706 3164 3770 3124 3740 3102 3726 3120 3706 3114 3756 3086 3724 3160 3718 3172 3706 3164 3654 3176 3730 3124 3734 3102 3704 3164 3734 3152 3662 3144 3640 3146 3618 3166 3644 3096 3586 3146 3566 3134 3674 3128 3842 3176 3764 3166 3650 3186 3652 3158 3740 3136 3814 3124 3754 3196 3714 3178 3634 3150 3626 3160 3658 3092 3672 3122 3662 3116 3662 3122 3666 3128 3732 3172 3710 3164 3648 3066 3714 3116 3748 3132 3732 3124 3658 3148 3680 3138 3762 3118 3636 3098 3700 3132 3754 3062 3756 3116 3652 3148 3700 3122 3664 3140 3672 3134 3658 3166 3750 3136 3662 3068 3762 3134 3742 3116 3788 3152 3668 3124 3658 3106 3726 3080 3704 3092 3654 3142 3684 3112 3774 3094 3770 3092 3788 3132 3646 3118 3660 3152 3696 3124 3704 3146 3722 3098 3682 3168 3636 3174 3630 3106 3630 3184 3728 3134 3692 3104 3688 3140 3694 3108 3694 3098 3744 3186 3734 3180 3122 3124 3148 3166 3080 3112 3144 3142 3112 3094 3066 3136 3128 3072 3090 3080 3092 3076 3098 3102 3076 3044 3112 3092 3094 3066 3098 3082 3146 3144 3098 3068 3098 3140 3130 3088 3082 10.85 The quality control director for a clothing manufacturer wants to study the effect of machines on the breaking strength (in pounds) of wool serge material. A batch of the material is cut into square-yard pieces, and these are randomly assigned, 12 each, to the three machines chosen specifically for the experiment. The results (stored in the file Breakstw) are shown at the top of the next column: At the 0.05 level of significance, a.) Is there an effect due to machine? b.) Plot the mean breaking strength for each machine. c.) If appropriate, use the Tukey-Kramer procedure to examine differences among machines. d.) What can you conclude about the effects of machines on breaking strength? Explain. File (Breakstw): I II III 115 111 109 115 108 110 119 114 107 117 105 110 114 102 113 114 106 114 109 100 103 110 103 102 106 101 105 112 105 108 115 107 111 111 107 110
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6266382_STAT.xlsx

10.83 The manufacturer of Boston and Vermont asphalt shingles knows that product weight is a major factor in the customers perception of quality.
Moreover, the weight represents the amount of raw...

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