Let's illustrate the idea of a sampling distribution in the case of a very small sample from a very small population. the given population is the scores of ten female students in a class. student 0 1 2 3 4 5 6 7 8 9 weight 136 99 118 129 125 170 130 128 120 147 the parameter of interest is the mean weight in pounds in this population. the sample is an srs of size =4 drawn from the population. because the students are labeled zero to nine, a single random digit from table a chooses one student for the sample. (a) find the mean of the ten weights in the population. this is the population mean . (enter your answer rounded to one decimal place.)

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?

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?