![subject](/tpl/images/cats/mat.png)
Mathematics, 07.07.2020 21:01 861819
In an article appearing in Today’s Health a writer states that the average number of calories in a serving of popcorn is 75. To determine if the average number of calories in a serving of popcorn is different from 75, a nutritionist selected a random sample of 20 servings of popcorn and computed the sample mean number of calories per serving to be 78 with a sample standard deviation of 7.
At the α = 0.05 level of significance, does the nutritionist have enough evidence to reject the writer’s claim?
a. No
b. Yes
c. Cannot determine
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 02:00
The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school.each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 04:00
If y varies as x, and y=8 as x=4 what will be the value of y if x=2
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 04:30
Write a linear funtion f with the values f(2)=-1, and f(5)=4
Answers: 2
You know the right answer?
In an article appearing in Today’s Health a writer states that the average number of calories in a s...
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 08.10.2021 01:00
![question](/tpl/images/cats/mat.png)
Mathematics, 08.10.2021 01:00
![question](/tpl/images/cats/ekonomika.png)
Business, 08.10.2021 01:00
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.10.2021 01:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.10.2021 01:00
![question](/tpl/images/cats/en.png)
English, 08.10.2021 01:00
![question](/tpl/images/cats/en.png)
English, 08.10.2021 01:00
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 08.10.2021 01:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.10.2021 01:00
![question](/tpl/images/cats/mat.png)