subject
Mathematics, 19.02.2021 16:10 memelord4206969

A random sample of 663 teens who said they did not typically eat fast food reported an average daily calorie intake of 2258, with standard deviation 1519. A random sample of 413 teens who said they did typically eat fast food reported an average daily calorie intake of 2637, with standard deviation 1138. The two populations are moderately positively skewed. Based on the above description, which of the following conditions are met for conducting a hypothesis test for the equality of two means? a. Both samples are random
b. Samples are independent of one another
c. Both samples are normal enough given the sample size
d. Two population means need to be the same

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 16:10
Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.
Answers: 1
question
Mathematics, 21.06.2019 19:40
Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.
Answers: 1
question
Mathematics, 21.06.2019 22:30
The track team ran a mile and a quarter during their practice how many kilometers did her team runs?
Answers: 1
question
Mathematics, 21.06.2019 22:30
When i'm with my factor 5, my prodect is 20 .when i'm with my addend 6' my sum is 10.what number am i
Answers: 1
You know the right answer?
A random sample of 663 teens who said they did not typically eat fast food reported an average daily...
Questions
question
Mathematics, 23.10.2019 05:00
question
Mathematics, 23.10.2019 05:00
Questions on the website: 13722363