Which of the following are produced by reactions that take place in the thylakoids and are consumed by reactions in the stoma? a.CO2 and H2O b.NADP+ and ADP c.ATP and NADPH d.Glucose and O2

Name the 3 organisms that carries out photosynthesis?

  The level of calcium in healthy young adults varies with a mean about 9.5 and a standard deviation of .4. A clinic in a rural area measured the blood calcium level of a random sample of 180 healthy pregnant woman at their first visit for prenatal care.  The mean was 9.57. Is this an indication that the mean calcium level in the population from which the women visiting the clinic come differs from 9.5?  Set alpha at .05.  

 Suppose that you are interested in examining if it is true that on average men earn more than $30.00 a day more than women in a certain entry level positions in some technical fields.  If sample data show that 80 men earned on average  $353.78 a day with a standard deviation of $18.03, while 80 women earned on average $315.14 a day with a standard deviation of $21.22 per a standard deviation of $21.33, conduct a hypothesis test at the .01 level of significance. 

    A random sample of 16 is selected from a normal population; mean =56 and s =12 on a selected variable.  If you are testing the null hypothesis  that the population mean = 50, what is the value of t?    

What is the effect on the margin of error and therefore on the accuracy of estimating a population mean by a sample mean if you increase the sample size while keeping the same confidence level?

Use the attached SPSS output to answer the following questions. A researcher was interested in the differences in grades (GPA) of students who lived on campus and those who did not.   GPA 1= Residents  GPA 2= Non-Residents Do the data provide support for population differences in GPAs between the two groups? Assume α is .05.                     What statistics did you use to draw your conclusion?                     How is t constructed from other statistics on the output?    

 When using inferential statistics the population is defined by the researcher. 

The  Tiombe Insight Test is a psychological test designed to measure how positively a subject appraises other people.  The possible scores on the test range from 0 to 41.  During the development of the Tiombe test, it was given to several different groups of people.  Here are the results for random samples of college students from  Northern and Southern colleges.  The researchers hypothesized that  this characteristic of appraisal would differ by region.  Here are the results for by region. Group Region n Mean  s 1  North 133 25.34 5.05 2  South 162 24.94 5.44 Note: This is not a real psychological test.  Do these data support the hypothesis that Northern and Southern students differ in average measures of positive appraisal of others? (Set alpha at .05)

A confidence interval for a population mean has a margin of error of  3.4 What is the length of the confidence interval? If the sample mean is 52.8 obtain the confidence interval?