![twistedhyperboles](/avatars/16074.jpg)
twistedhyperboles
04.04.2020 •
Mathematics
Pizza sales. A national food product company believes that it sells more frozen pizza during the winter months than during the summer months. Average weekly sales for a sample of stores in the Baltimore area over a one-year period provided the following data for sales volume (in pounds) during the two seasons. Assume that the two seasonal sales have different population standard deviations. Season N Mean StDev Minimum Maximum Winter 13 31234 13500 15312 73841 Summer 14 22475 8442 12743 54706 You want to investigate whether winter sales is the same with summer sales. Which among the following tests should you use? a.two sample z test
b.two sample pooled-t test (equal population standard deviation)
c.two sample t test with unequal population standard deviation
d.paired t test
Solved
Show answers
More tips
- W Work and Career How much does an honest traffic police officer earn in a day?...
- G Goods and services How to sew a ribbon: Tips for beginners...
- L Leisure and Entertainment How to Learn to Draw Graffiti: Tips for Beginners...
- F Family and Home How to Remove Tar Stains: Tips and Recommendations from Experts...
- F Family and Home How to Remove Fading from Clothes: Tips and Tricks...
- S Sport How to Do a Jumping Split...
- H Health and Medicine How Did Inna Lose Weight on Dom 2?...
- F Family and Home How to Properly Fold Napkins in a Napkin Holder?...
- F Food and Cooking How to Set Up Ventrilo - The Ultimate Guide...
- S Science and Technology How to Make a Homemade Smoker: The Ultimate Guide...
Answers on questions: Mathematics
- M Mathematics Alt or straight tiktok im quiting if i see one straight tiktok...
- M Mathematics Performance taskmaking a fruit bowlbill has 5 apples and 5 bananas.he can put only 5 pieces of fruit in a bowl.he starts a table to show all theways he can put fruit in the bowl.4.will...
- M Mathematics performance taskmaking a fruit bowlbill has 5 apples and 5 bananas.he can put only 5 pieces of fruit ina bowl.he starts a table to show all theways he can put fruit in the bowl.5....
- M Mathematics Aconjecture and the flowchart proof used to prove the conjecture are shown. given: s is the midpoint of rt. us≅rs prove: △stu is an isosceles triangle...
- M Mathematics 495 coins 1/3 of the coins are £1 124 coins are 50p the rest are 20p wor out the total value of the 495 coins...
- M Mathematics Booker has 85 video games. he has 3 shelves to put the video games on. each shelf can hold 40 games. how many more video games does he have room for?...
- M Mathematics Express 5/6 as a decimal work it out step by step?...
- M Mathematics Y=3x+2 part 1) find the slope of a line that is parallel to the given line. part 2) find the slope of a line that is perpendicular to the the given line....
- M Mathematics How would you completely factor 3x^4 -24x^2 +48 ?...
- M Mathematics Need answers asap linear pair vertical adjacent none of these...
Ответ:
39
Step-by-step explanation:
Find the function values for the given x
Subtract to get the change in f(x)
Divide by the change in x
f(3) = 3(3)³ + 1 = 82
f(1) = 3(1)³ + 1 = 4
Average rate of change:
(82 - 4)/(3 - 1)
78/2
39