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Valentin [98]
3 years ago
10

In how many ways can the letters in the word 'Illinois' be arranged?

Mathematics
1 answer:
xenn [34]3 years ago
7 0

Answer:

The numbers of ways to permute letters of the word Illinois if the two Ls must be consecutive is 7.

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Answer:

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We are confident that the true proportion of people satisfied with the quality of education the students receive is between (0.3995, 0.4564), since the lower value for this confidence level is higher than 0.38 we have enough evidence to conclude that the parents' attitudes toward the quality of education have changed.

Step-by-step explanation:

For this case we are interesting in the parameter of the true proportion of people satisfied with the quality of education the students receive

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\hat p =\frac{499}{1165}= 0.428

The confidence interval for the proportion if interest is given by the following formula:  

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And replacing the info given we got:

0.428 - 1.96\sqrt{\frac{0.428(1-0.428)}{1165}}=0.3995

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