Mathematics, 11.04.2021 01:00 dedrell16
A consumer group is investigating two brands of popcorn, R and S. The population proportion of kernels that will pop for Brand R is 0.90. The population proportion of kernels that will pop for Brand S is 0.85. Two independent random samples were taken from the population. The following table shows the sample statistics. Number of Kernels in Samples Proportion from Sample that Popped Brand R 100 0.92 Brand S 200 0.89 The consumer group claims that for all samples of size 100 kernels from Brand R and 200 kernels from Brand S, the mean of all possible differences in sample proportions (Brand R minus Brand S) is 0.03. Is the consumer groupβs claim correct? Yes. The mean is 0.92β0.89=0.03. Yes. The mean is 0.92 minus 0.89 equals 0.03 . A No. The mean is 0.92+0.892=0.905. No. The mean is the fraction 0.92 plus 0.89 over 2 equals 0.905 . B No. The mean is 0.92β0.892=0.015. No. The mean is the fraction 0.92 minus 0.89 over 2 equals 0.015 . C No. The mean is 0.90+0.852=0.875. No. The mean is the fraction 0.90 plus 0.85 over 2 equals 0.875 . D No. The mean is 0.90β0.85=0.05.
Answers: 2
Mathematics, 21.06.2019 19:40
Graph y = -|x| + 2. click on the graph until the correct one appears.
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Mathematics, 21.06.2019 20:30
Daryl factors the polynomial p(x)=x3+x2β26x+24 to rewrite it as p(x)=(x+6)(xβ4)(xβ1). which equations must be true? there may be more than one correct answer. select all correct answers. p(1)=0 p(β4)=0 p(β1)=0 p(6)=0 p(4)=0 p(β6)=0
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Mathematics, 21.06.2019 21:10
Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. β 6 β
β 2 2. ? 3. mβ 6 = mβ 2 3. def. of congruent 4. β 6 is supp. to β 8 4. def. of linear pair 5. β 2 is supp. to β 8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem
Answers: 3
Mathematics, 21.06.2019 21:30
The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?
Answers: 2
A consumer group is investigating two brands of popcorn, R and S. The population proportion of kerne...
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