What conclusion can you draw from the result of the t-test presented below?          

Presented below is a histogram of Beck Depression Inventory (BDI) scores ranging from 0 to 43. Looking at this histogram, what might make these data inappropriate to analyze using a t-test?  

A 6-week-old infant presents with projectile vomiting after every feed and a palpable “olive-like” mass in the right upper quadrant. What is the most likely diagnosis?

What do you call a variable that is measured in an experiment?

  Make a decision.  

Explain your decision in the previous question. How did you determine whether the H0 can be rejected with different significance levels or not? Please make sure to include the value of a calculated t statistic and critical values for both tests. 

  Compute the pooled variance, the estimated standard error of the mean difference, and the t statistic.   s2p = (round up to two decimals). s(M1 – M2) = (round up to two decimals). t = (round up to two decimals).

  Which of the following is the correct interpretation of the CI calculated above?  

Using a one-tailed test to evaluate the effect of the new cold medication, what decision should be made?

Binge-watching is defined as watching multiple episodes of a TV show in a short time. It has been shown to have some negative psychological effects, including sleep disturbances, reduced productivity, social isolation, and eating disorders. In addition, there is evidence that binge-watching may impact the enjoyment of a show.  Specifically, Horvath et al. (2017) revealed that binge-watchers reported enjoying a TV show significantly less than people who watched the same show on a daily or weekly schedule. To examine this phenomenon, you randomly assigned participants to watch an entire TV series in the lab during either daily one-hour sessions or a single binge session. Participants were then asked to rate their enjoyment of the series on a scale of 0 – 100. Their ratings are presented below.