Assume that we want to construct a confidence interval. Do one of the following, as appropriate (a) find the critical value a/2. (b) find the critical value Zg/2, or (C) state that neither the normal distribution nor the t distribution applies
Here are summary statistics for randomly selected weights of newborn girls: n = 154, x = 31.9 hg, s = 75 hg The confidence level is 90%

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Step-by-step explanation:

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percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

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step-by-step explanation: