Weights of 10 red and 36 brown randomly chosen M{&}M plain candies are listed below

Weights of 10 red and 36 brown randomly chosen M{&}M plain candies are listed below.

Red:

0.907	0.897	0.912	0.891	0.874
0.936	0.898	0.913	0.871	0.923

Brown:

0.93	0.913	0.898	0.921	0.872	0.866
0.931	0.92	0.914	1.001	0.92	0.936
0.902	0.875	0.857	0.915	0.9	0.877
0.923	0.986	0.905	0.876	0.897	0.93
0.929	0.871	0.918	0.889	0.928	0.861
0.988	0.912	0.867	0.858	0.86	0.902

1.   To construct a 90% confidence interval for the mean weight of red M{&}M plain candies, you have to use
A. The normal distribution
B. The t distribution with 10 degrees of freedom
C. The t distribution with 9 degrees of freedom
D. The t distribution with 11 degrees of freedom
E. None of the above

2.   A 90% confidence interval for the mean weight of red M{&}M plain candies is
________ <μ< __________
3.   To construct a 90% confidence interval for the mean weight of brown M{&}M plain candies, you have to use
A. The t distribution with 36 degrees of freedom
B. The t distribution with 37 degrees of freedom
C. The normal distribution
D. The t distribution with 35 degrees of freedom
E. None of the above

4.   A 90% confidence interval for the mean weight of brown M{&}M plain candies is
__________ <μ< ____________

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