Given the following data, calculate SM1-M2-- **ROUND AND REPORT YOUR ANSWER TO TWO DECIMAL PLACES!!** Non-depressed: M₁= 24, SS₁ = 178 Depressed: M₂ = 12, SS₂=122

Is there a statistically significant difference between professors and rock stars in terms of political party affiliation? The proportion of professors and rock stars registered as Democrats from a nationally representative sample from each profession is reported below. Please include all steps of the five step model and write a sentence or two interpreting your results (use p= .01, Z(critical) =  ± 2.58).                            Professors                                          Rock Stars                           Ps1 = .86                                              Ps2 = .92                         N1 =  325                                             N2 = 287

A sample of 3 measurements are taken and recorded: x=7, y=10 and z=8 The sample mean is: x¯=x+y+z3=8.33 Fill in the table below. ai (ai−x¯)2 x   y   z   s2=(x−x¯)2+(y−x¯)2+(z−x¯)22= s=(x−x¯)2+(y−x¯)2+(z−x¯)22=

Justify your conclusion in terms of the derivative of the parameter transformation involved

H0 : =150.00 kPa H1 :>150.00 kPa b) α= 0.01; sample variance : 1300 (freq. table ) sample deviation : 36.0555 (freq. table ) Calculation of Data  Mean of the results=  = 6700/50 =134 Mid Range of the results= (217.32+46.32)/2= 131.82 Range = (217.32-46.32) = 171 Modal Class= Class 121-145 with the highest frequency of 15 Median of the sorted set of data = 132.25 Mode = there are not clear modes In the samples.  Sample variance S o= 1300 Sample deviation: S =36.55

A professor of mathematics teaches at a catholic school and at a public school. He wants to know whether attending a catholic school leads to higher grades. He collected data from 7,430 students from both school's types. Considering this information, please answer the following questions: a) How can you interpret the OLS outcome on whether the child attended a catholic school (cathhs) is important to explain students' grade? Source Model Residual Total cathhs lfaminc SS 143098.058 521610.985 motheduc fatheduc 664709.043 df math12 Coefficient Std. err. 17887.2573 8 7,421 70.2885036 7,429 89.4749015 1.623158 .4106669 1.447696 .1431147 .0613988 .7345401 .832485 . 055494 black -5.226717 hispan -1.221689 asian 3.28341 female _cons MS .3915981 .3328612 .4438741 -1.066021 .1950649 16.72931 1.355485 Number of obs F(8, 7421) Prob > F R-squared Adj R-squared Root MSE t P>|t| 3.95 0.000 0.000 10.12 11.96 0.000 15.00 0.000 -13.35 0.000 -3.67 0.000 7.40 0.000 -5.46 0.000 12.34 0.000 = .8181343…

otal plasma volume is important in determining the required plasma component in blood replacement therapy for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that a random sample of 46 male firefighters are tested and that they have a plasma volume sample mean of x = 37.5 ml/kg (milliliters plasma per kilogram body weight). Assume that ? = 7.50 ml/kg for the distribution of blood plasma. (a)Find a 99% confidence interval for the population mean blood plasma volume in male firefighters. What is the margin of error? (Round your answers to two decimal places.) lower limit ___ upper limit ___ margin of error ___ (b)What conditions are necessary for your calculations? (Select all that apply.) A-the distribution of volumes is uniform B-? is known C-the distribution of volumes is normal D-? is unknown E-n is large d)Find the sample size necessary for a 99% confidence level with maximal margin of error E =…

An economic instructor at UCF is interested in the relationship between hours spent studying and total points earned in a course. Data collected on 19 students who took the course last semester follow # of observation(s) n = 19 # of independent variable(s) = 1 SSR = 3,882 SSE = 256 Find the Value for MSE (Use two decimals)

Determine whether the samples are independent or consist of matched pairs. (a) A speed training method is tested by comparing the 100 m times of a group of sprinters who used this method with a group of sprinters who used a different method. F3 O independent samples O matched pairs (b) The amount of water that a random sample of families use per day is measured twice--once before they view a conservation video, and again one week after viewing this video. 4 O independent samples O matched pairs Submit Question R F4 % 5 T Ŝ F5 A Y F6 & 7 S U F7 * PrtScn 8 F8 Home ( F9 O ) End F10 P F

A single sample T-test is to be done on a study about typhoons. Many believe that the average number of typhoons that enter the Philippines each year is 18 (μ ≥ 18). Some climatologists, however, observe that the true average number of typhoons that enter the Philippines each year less than 18. Science teachers from LPU collected the data about the typhoons that entered the country each year since 2018 (n = 9). The sample mean is = 17. The sample standard deviation of s = 1.5. 32. State and Null and Alternative Hypotheses. 33. What is the level of confidence? 34. What is the critical value? Hint: You will find it in the table for T-Test. 35. Write the decision rule. 36. What is the equivalent T-score of x = 17? A. 1.5 B. 7.54 C. -2.00 D. 2.67 37. What is the conclusion to this problem after performing T-Test? STANDARD NORMAL TABLE (Z) Entries in the table give the area under the curve between the mean and z standard deviations above the mean. For example, for z= 1.25 the area under the…