Small sample mean problem. a study was done to determine the effect of vitamin supplements for the mother on the birth weight of babies. the sample size was 17. all the women in the study regularly visited a doctor during their pregnancy. the data below show the summary statistics and a stem and leaf plot of the birth weight of the 17 babies. weight is in kilograms (kg). 3.761 3.730 0.531 0.729 19.380 17 stem leaf mean median variance std dev cv count 2 47 302 22 39 43 352 68 73 73 4 09 13 33 37 447 68 5 14 in kg, stem is whole number 2147 is 2.47 the average weight of all babies from women receiving regular care during pregnancy in the region of the study was 3.40 kg. (treat this as if it is the population value). you are asked to conduct a test to see if the sample mean from the mothers given vitamin supplements is different from the regional average of 3.40. use alpha .05. what is the test statistic?

Afunction is given: f(x)=3x+12 a. determine the inverse of this function and name it g(x) b. use composite functions to show that these functions are inverses. c. f(g(– explain: what is the domain?

In tossing one coin 10 times, what are your chances for tossing a head? a tail? 2. in tossing one coin 100 times, what are your chances for tossing a head? a tail? 3. in tossing one coin 200 times, what are your chances for tossing a head? a tail? deviation = ((absolute value of the difference between expected heads and observed heads) + (absolute value of the difference between expected tails and observed tails)) divided by total number of tosses. this value should always be positive. 4. what is the deviation for 10 tosses? 5. what is the deviation for the 100 tosses? 6. what is the deviation for 200 tosses? 7. how does increasing the total number of coin tosses from 10 to 100 affect the deviation? 8. how does increasing the total number of tosses from 100 to 200 affect the deviation? 9. what two important probability principles were established in this exercise? 10. the percent of occurrence is the obtained results divided by the total tosses and multiplied by 100%. toss the coins 100 times and record your results. calculate the percent occurrence for each combination. percent head-head occurrence: percent tail-tail occurrence: percent head-tail occurrence:

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)