FIND THE P VALUE GIVEN THIS DATA   The total time (in minutes) a subject spent on the Trail Making Test (a standard psychological test) was used as a measure of cognitive function. The researchers theorize that the mean time on the Trail Making Test for schizophrenics will be larger than the corresponding mean for normal subjects. The data for independent random samples of 41 schizophrenics and 49 normal individuals yielded the following results: ***PHOTO   Does the data provide significant evidence, at the  4.6% level, that the population mean time for patients diagnosed with schizophrenia exceeds the population mean time for normal individuals by more than 20 points?

Empathy among police officers influences how they interact with citizens and the likelihood that they receive complaints. Gender differences in levels of empathy in the general population are not large but male and female officers have been shown to have different interaction styles with the public; this may be due to the different empathy levels. After sampling officers and measuring their levels of empathy you find the following data.   Males       Females   n = 6 n = 9 M = 31 M = 45 SS = 490 SS = 680   If you were going to make gender comparisons like this, which option would be the correct choice?  Write A or B in the box. [a]            Option A. Independent-measures t-test            Option B. Repeated-measures t-test

ANOVAA therapist is interested on investigating whether there are any significant mean differences in the treatments on stress (a score from 0 to 10) among students with anxiety. The data is recorded as below.  Mindfulness Playing with puppies Watching a positive video 01010 23230 24454   What are the groups being compared?  That is, what are the levels of the IV? What is the IV? What is the level of measurement of the IV? What is being measured?  That is, what is the DV? What is the level of measurement of the DV? With α = .05, determine whether there are any significant mean differences among the groups. Complete steps 1-4 of the hypothesis test and write interpretations.

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Dr. Springer collected data to see whether people who eat an all-carbohydrate meal have different scores on a mood scale than people who eat an all-protein meal. Higher scores represent better moods. Here are her results: All Carbs All Protein 10 7 8 4 7 9 9 28 13 13 7 7 12 Is there a difference in reported mood between the two groups? Use a two tailed test with an a = 0.05. Step 4: Make a decision Our test statistic has a value of t = I , and in Step 2 we found that the critical value is t* = the null hypothesis Therefore, we (write: reject or fail to reject)

I guessed that the relationship between the mean and the median cannot be determined.    That was wrong.  I do not Understand what to look for on this diagram

Intelligence test given to two groups of boys and girls gave the following information : Mean score S.D. Number Girls 75 10 100 Boys On the basis of the above information would you conclude that mean scores of boys and girls are statistically significant ? 70 12 200

could you please help to answer this question? thank you

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Select all true statements below (Multiple or none can be true). With a large, representative sample, the histogram of the sample data will follow the normal curve closely. If two lists of numbers have exactly the same average of 50 and SD of 10, then the percentage of entries between 40 and 60 must be exactly the same for both lists. Half of a list of numbers is always below its average. The median and average of a list of numbers are not necessarily close together.