The following data on price ($) and the overall score for 6 stereo headphones that were tested by Consumer Reports were as follows. Brand Price ($) Score Bose 192 78 Scullcandy 156 72 Koss 96 66 Phillips/O'Neill 84 60 Denon 78 42 JVC 36 24   a.  Does the t test indicate a significant relationship between price and the overall score? The test t-Conclusion at  = .05 t =  (to 2 decimal places.) p-value is  What is your conclusion? Use ax= .05.  . b.  Test for a significant relationship using the F test. p-value is  What is your conclusion? Use  ax= .05. Because p-value is  .05, we  H 0: β 1 is  . c.  Show the ANOVA table for these data. Round your answers to three decimal places, if necessary. Source of Variation Sum of Squares Degrees of Freedom Mean Square F p-value Regression           Error           Total

. Students may be classified as having a math dysfunction—and not have to take statistics—if they score below the 25th percentile on a diagnostic test. The m of the test is 75 and sX  10. Approximately what raw score is the cutoff score needed to avoid taking statistics?

Still need D , E and F

A runner states that his average time for running a mile is 6.5 minutes.  Given the following times from 8 recent mile runs, test the claim that his  actual average is not what he states it to be at the a = 0.05 level of  significance.  6.25    6.6    6.8    7.2    6.3    7.0    6.5    6.75

Below is a histogram of the current prices of different varieties of face masks, with a skewness of measure of -1.380. Based on your knowledge of graph shape, approximate the mean (average) cost of a box of masks. Count 15 10 5 0 T 20 37$ per box of 24 $8 per box of 24 49$ per box of 24 24$ per box of 24 Current price of a box of 24 facemasks 25 30 Price 35 40 45

A researcher thinks that watching violent televisions increases aggressive behavior in children. To test this hypothesis, she randomly assigns 48 children into one of 3 groups (no violent TV, a little violent TV, or a lot of violent TV) and observes their playground behavior for three weeks and measures it for violence and intensity. For the variable “amount of TV” (as it appears in this problem), what is the scale of measurement? a. nominal b. ordinal c. interval d. ratio   A researcher thinks that watching violent televisions increases aggressive behavior in children. To test this hypothesis, she randomly assigns 48 children into one of 3 groups (no violent TV, a little violent TV, or a lot of violent TV) and observes their playground behavior for three weeks and measures it for violence and intensity. If the researcher’s hypothesis is correct, which of the following conclusions could be drawn? a. Fail to reject the null, watching violent TV does not increase…

your car is more crowded than you think.  table 5.8 reports results from a 1969 personal transportation survey on "home-to-work" trips in metropolitan areas. The survey stated that the average car occupancy was 1.4 people. check that calculation.