Suppose that a normal model describes student scores on the final exam in a Statistics class. Miguel's final exam has a standardized score (z-score) of 1.0. This means that: Group of answer choices his score was 1 point above the class average, so he scored better than about 55% of the class. his score was 1 standard deviation above the mean, and he scored better than about 84% of the class. his score was in the 10th percentile, and he scored better than 10% of the class. he got one question correct and earned a 1%.

Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below. correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance. what is the value of the test statistic? χ2stat=what is the p-value? p-value=is this value significant atα=0.025?

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.