The weights of male and female students in a class are summarized in the following boxplots...
The weights of randomly selected 5 female students and 5 male students are given by the following: weights for male students:160,165,152,158,178 weights for female students:169,154,158,156,162. Let the weight distributions of male and female students follow N(μ1,σ1) and N(μ2,σ2) respectively. • Test H0 : u1 = μ2 VS u1 cant equal u2 at 5% level of significance. Use P(t8>2.30) =0.025. (5 points)
The weights of randomly selected 5 female students and 5 male students are given by the following:weights for male students:160,165,152,158,178weights for female students:169,154,158,156,162.Let the weight distributions of male and female students follow N(μ1,σ1) and N(μ2,σ2)respectively.• TestH0:σ1=σ2vs.H1:σ16=σ2at 5% level of significance. UseF4,4,0.025= 0.10F4,4,0.975= 9.60.
The weights of randomly selected 5 female students and 5 male students are given bythe following:weights for male students:160,165,152,158,178weights for female students:169,154,158,156,162.Let the weight distributions of male and female students follow N(μ1,σ1) and N(μ2,σ2)respectively. TestH0:μ1=μ2vs.μ16=μ2at 5% level of significance. UseP(t8>2.30) =0.025. (5 points)
Use the following for the next 3 questions. A biologist is interested in comparing the lengths of the male and female green lynx spiders. Here are the summary statistics and boxplots of the lengths of 30 male and 30 female green lynx spiders that were measured in millimeters GENDER n Mean Standard Deviation Minimum Median Q3 Maximum MALE30 5.917 0.6634.700 5.650 5.850 6312 7.500 FEMALE 30 8.153 1.187 5.900 7.513 8.175 8.938 10.800 16. The distribution of female lengths is...
9. (10 points) A researcher was interested in comparing the GPAs of male and female students at CofC. Two independent simple random samples of 49 females and 36 males Cof students resulted in the following summaries: Females: R1 = 3.25, s; = 0.26; Males: fz = 3.06,82 = 0.59. Is it reasonable to think that female CofC students have a higher mean GPA than male CofC students? a) State the null and altemative hypotheses symbolically. b) Check assumptions and choose...
Four students are selected at random from a chemistry class and classified as male or female. List the elements of the sample space S1 , using the letter M for male and F for female. Define a second sample space S2 where the elements represent the number of females selected.
Four students are selected at random from a chemistry class and classified as male or female. List the elements of the sample space S1 , using the letter M for male and F for female. Define a second sample space S2 where the elements represent the number of females selected.
Question 7: Consider 10 male students M1, M2,... , Mo and 7 female students F1, F2,... , F Assume these 17 students are arranged on a horizontal line such that no two female students are standing next to each other. We are interested in the number of such arrangements, where the order of the students matters Explain what is wrong with the following argument We are going to use the Product Rule: » Task 1: Arrange the 7 females on...
The table below shows the number of male and female students enrolled in nursing at a universit Nursing majors Non-nursing majors Total Males Females Total 98 600 698 1019 1722 2741 2322 3439 (a) Find the probability that the student is male or a nursing major P(being male or being nursing major) (Round to the nearest thousandth as needed.) (b) Find the probability that the student is female or not a nursing major P(being female or not being a nursing...
The following data are the weights (lbs) of 20 college-age males. 140, 155, 153, 150, 178, 160, 155, 145, 163, 150 141, 169, 179, 176, 157, 153, 184, 160, 145, 185 3).2pts. Can you expect you weigh less than about 50% of the 20 college-age males if you are 165 lbs? why? 4).2pts. What kind of weight (or weight range) should you keep if you want to be in the lower 25%? a. The following data are the weights (lbs)...