Question

1)

Question 2 options:

A consumer advocate group selects a random sample of 205 snack foods and finds that 174 of them contain more fat grams than what is indicated in the snack's nutritional information.

Create a 90% confidence interval for the population proportion for snack foods that contain more fat grams that what is indicated in the snack's nutritional information.

Enter the lower and upper bounds for the interval in the following boxes, respectively.

You may answer using decimals rounded to four places or a percentage rounded to two. Make sure to use a percent sign if you answer using a percentage.

2)

Question 3 options:

In a random sample of 257 adult Orcas in the wild, there were 159 whose total body length was 28 feet or longer.

Create a 98% confidence interval for the population proportion of adult Orcas in the wild who total body length is 28 feet or longer.

Enter the lower and upper bounds for the interval in the following boxes, respectively.

You may answer using decimals rounded to four places or a percentage rounded to two. Make sure to use a percent sign if you answer using a percentage.

3)

Question 4 options:

A random sample of 150 visitors traveling in Hawaii found that 14% of them hiked the Legendary Na Pali Coast.

Create a 94% confidence interval for the population proportion of visitors hiking the Na Pali Coast.

Enter the lower and upper bounds for the interval in the following boxes, respectively.

You may answer using decimals rounded to four places or a percentage rounded to two. Make sure to use a percent sign if you answer using a percentage.

Answer 1

qiy POP) p= 144/2005 - 0.5488 907.69 = pt talle ] 10.8488 (1-0.syss - 0.8488 + .640. Jos 0.8488 10-04116 205 0.80.16,0.88996 ū (0.8076, 0.8900) similarly 98%.69.- (159/267) 42.3.36 0.6184(1-0.6174) -0.618++ 0.0705) =(0.5482,0.68920) 93% 94% (9 = (6.14) + 1.5881 10.14x0.8 v 100 - (0.14 + 0.05 35 ) - (0086S, 0:1935)

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