You want to know if high-school females score differently than high-school males on a standardized test. you take a random sample of 28 males and 27 females from high schools across the country and record their scores. which confidence interval would you use to analyze these data?

Step-by-step explanation:

Random sample size of males, n₁ = 28

Random sample size of males, n₂ = 27

Here,

If n₁ < 30 & n₂ < 30,

we use t-distribution

Therefore,

The confidence interval chosen will be

⇒

Here,

is mean of sample n₁

and,

is mean of sample n₂

s is the standard deviation

the value of 't' can be obtained from the standard t- distribution table

answer: 298143

step-by-step explanation:

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step-by-step explanation: