We are curious about the average speeds at which men and women drive cars. We have some data: a random sample of 60 cars driven by men on a highway and found the mean speed to be 65 miles per hour with a standard deviation of 3.0 miles per hour. Another sample of 80 cars driven by women on the same highway gave a mean speed of 63 miles per hour with a standard deviation of 3.0 miles per hour. Assume that the speeds at which all men and all women drive cars on this highway are both approximately normally distributed with unknown and unequal population standard deviations. Given 2.5% significance level, do all women drive slower than all men? Select the appropriate Null and Alternative Hypothesis states: H0: \"men _ \"women 5 0 Hoipmen _ #wamen = H1: tumen iuwomen 2 0 Hu'men _ #WOH'IE'H > 0 0 Option 4 0 Option 3 H0: \"men _ \"women = 0 H1: \"men _ \"women 5 0 H0: #men _ \"women = 0 \"me _ iuwomen :1: 0 0 Option 2 0 Option 1 We are curious about the average speeds at which men and women drive cars. We have some data: a random sample of 60 cars driven by men on a highway and found the mean speed to be 65 miles per hour with a standard deviation of 8.0 miles per hour. Another sample of 80 cars driven by women on the same highway gave a mean speed of 63 miles per hour with a standard deviation of 3.0 miles per hour. Assume that the speeds at which all men and all women drive cars on this highway are both approximately normally distributed with unknown and unequal population standard deviations. Given 2.5% significance level. do all women drive slower than all men? Select the appropriate type of test from below 0 Hypothesis test about population means with approximately normally distributed and independent samples Hypothesis test about population means with approximately normally distributed and matched samples distributed sample Hypothesis test about population means with approximately normally distributed and O Hypothesis test about single population mean with an approximately normally 0 dependent samples We are curious about the average speeds at which men and women drive cars. We have some data: a random sample of 60 cars driven by men on a highway and found the mean speed to be 65 miles per hour with a standard deviation of 3.0 miles per hour. Another sample of 80 cars driven by women on the same highway gave a mean speed of 63 miles per hour with a standard deviation of 3.0 miles per hour. Assume that the speeds at which all men and all women drive cars on this highway are both approximately normally distributed with unknown and unequal population standard deviations. Given 2.5% significance level. do all women drive slower than all men? Select the distribution that you want to use: 0 The Chisquared Distribution 0 The tdistribution O The Multinomial Probability Distribution 0 The Standard Normal Distribution We are curious about the average speeds at which men and women drive cars. We have some data: a random sample of 60 cars driven by men on a highway and found the mean speed to be 65 miles per hour with a standard deviation of 8.0 miles per hour. Another sample of 80 cars driven by women on the same highway gave a mean speed of (:3 miles per hour with a standard deviation of 3.0 miles per hour. Assume that the speeds at which all men and all women drive cars on this highway are both approximately normally distributed with unknown and unequal population standard deviations. Given 2.5% significance level, do all women drive slower than all men? Calculate and input the degree and freedom. You may use the image below for your convenience. lnstruction: input your answer as a whole number (e.g., 99). Do not use decimal. s+sz e+2 d _ n1 n2 _ 315 F5 _ (1.066567+0.1125)2 f ' 52 2 32 2 ' 32 2 32 2 ' (0.019284+.00016) ' i (at) (to) "1 "2 60er mI+F ' ' Youranswer We are curious about the average speeds at which men and women drive cars. We have some data: a random sample of 60 cars driven by men on a highway and found the mean speed to be 65 miles per hour with a standard deviation of 8.0 miles per hour. Another sample of 80 cars driven by women on the same highway gave a mean speed of 63 miles per hour with a standard deviation of 3.0 miles per hour. Assume that the speeds at which all men and all women drive cars on this highway are both approximately normally distributed with unknown and unequal population standard deviations. Given 2.5% significance level. do all women drive slower than all men? Select the Critical Value. 0 4.993 O +1993 0 H.960 O 4.994 O +1994
