Question 2 of 7

Question 2 of 7 Your answer is partially correct. 0.45 / I .18 Blonde hair is believed to be thinner than brown hair.To cheek ithair thickness f two random samples of pebplle was tested; ni 21 with blonde hair (color and thiickness are natural for all sybjects)l The meanlhai! thickness/is 79 with brown hair and 112 = and = 69 pm respectively, = 02 - 13. (a) Formulate and test an appropriate hypothesis using a 0.05. i!Vhatisi your conclusionsl Find the P-value. 1) The parameter of interest is the difference in meanspi '12'. Note tinaf'A0i 0. or 0041 : 112 The test statistic is: Round your answer to four decimal places (e.g. 98.7654). Round your-answer to four decimal places (e.g. 98.7654)] P (b) guildeconfidence interval for the parameter ofinterest using a 0.05. Round your answers to three decimal places (e.g. 98.765). We are 95% confident that value 1 exceeds Value 2 'by between (c) What is the power of the test for the true difference 'in means of 13?qUse a ,0.05. Round your answer to three decimal' places (e.g. 98765). What sample size should be used to obtain = 0105? Assume sample siizes are equal' and We should use 'Jl = eTextbook and Media Save for Later 0105. Assistance ed Submit Answer