A negative z score indicates that an individual's raw score:

It was hypothesized that there will be a difference in the average test score in Chemistry class between high schoolers who watched Breaking Bad (Group 1) and high schoolers who did not watch Breaking Bad (Group 2). Calculate and use the appropriate statistical test to analyze the data below. Be sure to write the appropriate sign (+ or -) before your value. Note: SHOW YOUR WORK!  watched breaking bad  86    99 91      94 98      92 97      93   n=8 M=93.25 SS=127.5     did not watch breaking bad 90     79 82   86 85     83 82.    81    n=8  M= 83.50 SS=82       Based on your answers above, what is your conclusion regarding the null?      Retain the null     Reject the null   Write out your conclusion. It does not have to be in APA format but should be written in sentence form.

find the mean if Z-score =14, st.Dev.=2.5, for a score of 8.5

Describe the formula used to calculate a z-score?

The test scores for a class of 155 students are computed. What is the location of the test score associated with the third quartile?

Researchers wondered whether the size of a person's brain was related to the individual's mental capacity. They selected a sample of 3 females and 3 males and measured their MRI counts and IQ scores. The data is reported on the right. Females Males MRI IQ MRI 10 866,664 132 965,355 132 790,620 135 1,001,121 141 856,473 141 1,079,550 135 O Treat the MRI count as the explanatory variable. Compute the linear correlation coefficient between MRI count and IQ for both the males and the females. Do you believe that MRI count and IQ are linearly related? The linear correlation coefficient for females is. The linear correlation coefficient for males is. (Round to three decimal places as needed.) Are MRI count and IQ linearly related? linear The linear correlation coefficient for females is close to ▼so relation exists between MRI count and IQ for females. The linear correlation coefficient for linear relation exists between MRI count and IQ males is close to for males. SO

In a city with three high schools, all the ninth graders took a Standardized Test, with these results: High School Mean score on test Number of ninth graders Glenwood 77 259 Central City 90 344 Lincoln High 66 171 The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was 77.7 . Of course, that is incorrect. What is the mean score for all ninth graders in the city? USE EXCEL. Round your answer to one decimal place.

Determine the test​ statistic, z0. and P-value.

A software company is interested in improving customer satisfaction rate from the 66% currently claimed. The company sponsored a survey of 280 customers and found that 199 customers were satisfied. What is the test statistic z? Ex: 2.22 3

how did you find the Z score?