(Use SPSS)  In your Geology class, the professor provides you with a sack containing ten marbles made of different materials – the label on the sack states that there are 4 onyx marbles, 2 quartz marbles, 3 granite marbles, and 1 alabaster marble.  The professor instructs you to draw out a marble (without looking in the sack), record its type, and return the marble to the bag.  You repeat this process until you’ve recorded the results of 100 draws (shown below).  Using a 1% significance level, test to determine if your sampling results indicate that the label on the sack is incorrect.  Be sure to check any assumptions.   TYPE OF MARBLE Onyx Quartz Granite Alabaster FREQUENCY 42 24 28 6

Name: ID: A 5. An experiment was dcsigned to sec if regular exercise can help lower blood pressure for patients with high blood pressure. A rescarcher wanted to test this thcory and told a groen of volunteers with high blood pressure that excrcise may work better than any other treatment for high blood pressure. The rescarcher assigned participants to two groups. One group was enrolled in a physical fitncss program and the other group was prescribed a placebo. At the end of the month, the blood pressure in the volunteers, on average, decreased approximatcly the same from the blood pressure at the beginning of the month for both groups of participants. Which of the following is true about this experiment? Because the researcher is the one that picks the group of patients that exercisc, the paticnts are blinded to the treatment and the decrease in blood pressure is caused by the exercise routine or the medicine, b. The fact that the average dccrease was not significantly different for…

How many handshakes are required for a group of 15 people to shake everyone's hand?

Name: ID: A 10. An experiment was conducted to see if listening to music while learning increased retention of material. Forty student voluntcers at a college were randomly assigned to one of two groups of twenty. The first group listencd to a teacher lecture with music playing in the background and the second group just listened to the teacher lecture. After the lecture, studcnts were given a test on the material that was taught. Thirtecn of the students in group one passed the test and 11 of the students in group two passed the test. Thus, the difference in the proportion of studcnts who passed the test was 0.10. Fifty trials of a simulation were performed to sec what differences in proportions would occur due to chance variation in the random assignment assuming listening to music did not matter. The dotplot of the results of the simulation is shown below. Bascd on the dotplot, are the results statistically significant? ill. 02 0.1 02 03 Sumulated diffeence in sample proportiom of…