PLEASE SOMEONE HELP AND ANSWER CORRECTLY ITS DUE TODAY !!!!! 2. O 0.753 points I

Question

PLEASE SOMEONE HELP AND ANSWER CORRECTLY ITS DUE TODAY !!!!! 2. O 0.753 points I Previous Answers PODStat4 11.E.010 My Notes o Ask Your Teache Each person in a random sample of 228 male teenagers and a random sample of 302 female teenagers was asked how many hours he or she spent online in a typical week. The sample mean and standard deviation were 15.1 hours and 11.3 hours for males and 14.1 and 11.8 for females. (Use a statistical computer package to calculate the P-value. use Aumale Aufemales Round your test statistic to two decimal places, your df down to the nearest whole number, and your P-value to three decimal places.) Is there enough evidence to show that mean number of hours spent online in a typical week is greater for male teenagers

Explanation / Answer

Let u1 = mean number of hours spent online by a typical male teenager

. Let u2 = mean number of hours spent online by a typical female teenager.

n1=228 , x1 = 15.1, s1=11.3

n2=302,x1=14.1 s1=11.8

t = (15.1-14.1)/sqrt(11.3^2/228 + 11.8^2/302)

= 0.9896

df = (s1^2/n1 + s2^2/n2)/ ((1/n-1)(s1^2/n1)^2) + ((1/n2-1)(s2^2/n2))

= 1.04265/(0.001382+0.00070623)

= 499.29 = 499

P-value = 0.1614

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