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3 years ago

Identify the null and alternative hypothesis in the following scenario.

Mathematics

1 answer:

Sphinxa [80]3 years ago

7 0

Answer:

H0 : u1 = u2 ; H1 : u1 ≠ u2 , or specifically u1 > u2

Step-by-step explanation:

Null Hypothesis is the neutral hypothesis , stating no difference from assumed value, (or in this case no difference between both batteries' mean life)

Alternate Hypothesis is the special case hypothesis, stating difference from assumed value , (or in this case states difference between both batteries' mean life)

Let mean life of battery 1 & battery be b = u1 & u2 , respectively.

Null Hypothesis [ H0 ] : u1 = u2

Alternate Hypothesis [ H1 ] : u1 ≠ u2 , or specifically u1 > u2 { To determine if battery 1 lasts <u>longer</u> than battery 2 }

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*6. Five brothers each bought two hot dogs & a bag of chips. If the chips

Oxana [17]

D- 1.65 per hot dog

Take the amount of the bag of chips which is 1.25 and multiply it by 5 because that’s how many people there are and they each bought one bag
1.25 x 5= 6.25
Next you want to subtract that amount from the total so we can just have the amount of money spent on hot dogs
22.27-6.25=16.50
Then you want to divide 16.50 by 5 because they all bought the same amount of hot dogs and this will get us to the amount of to hot dogs
16.50/5=3.30
Finally you want to divide 3.30 by 2 which will get us the price for 1 hot dog
3.30/2=1.65

There you go!!

3 0

3 years ago

Read 2 more answers

John swam halfway across a circular pond (radius). He has gone 132 yds. What is the diameter of the pond?

netineya [11]

Answer:

D. 264yards

Step-by-step explanation:

If John swam halfway across a circular pond (radius) and he has gone 132 yds, then the radius of the circular pond is 132yards.

Diameter of the pond = 2×radius of the pond

Diameter of the pond = 2×132

Diameter of the pond = 264yards

7 0

3 years ago

Select the sets of data where it would be better to use a histogram than a

Contact [7]

Answer:

Weight of students in your class

Daily rainfall in Miami over a month

Step-by-step explanation:

A histogram is applied when the data is discrete/ continuous to present a visual understanding of the data by showing the number of data set fitting is a specified range.

A dot plot utilizes data which has only one measured variable, where the variable can be organized into categories.

8 0

3 years ago

What is a 3 2/3 model example?

Annette [7]

I don't have an exact model but this site can help you.

https://learnzillion.com/lesson_plans/7928-use-models-for-division-of-fractions-by-fractions/

I hope this helps you in your studies and have an awesome day!

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3 years ago

How do you graph y= -3x + 5

ZanzabumX [31]

You first find its intercepts: the x intercept is (5/3,0) and the y intercept is (0,5) (just plot those points). Then make the line connecting those 2 points!

4 0

3 years ago