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Zolol [24]
2 years ago
6

Ms. Holmstrom set up a math problem to find out how much money her class spends for lunches at the cafeteria for over a 2-day pe

riod. On Monday, 14 students bought lunches in the cafeteria, and 16 students bought lunches on Tuesday. If lunches cost $2.50 each, how much money has Ms. Holmstrom's class spent?
Mathematics
1 answer:
Debora [2.8K]2 years ago
6 0
Bsnslakwkwkwnanwnw. And
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I need help with this question.
lbvjy [14]
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igor_vitrenko [27]
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the length of a rectangle is 50 feet less than its width. If the perimeter of the field is 840 feet, find the length of the fiel
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2 years ago
The researcher is interested to know if policy A (new) is more effective than policy B (old). Frame the hypothesis and describe
vesna_86 [32]

<u>Answer:</u>

<u>Null hypothesis: Policy B remains more effective than policy A.</u>

<u>Alternate hypothesis: Policy A is more effective than policy B.</u>

<u>Step-by-step explanation:</u>

Remember, a hypothesis is a  usually tentative (temporary until tested) assumption about two variables– independent and the dependent variable.

We have two types of hypothesis errors:

1. A type I error occurs when the null hypothesis (H0) is wrongly rejected.

That is, rejecting the assumption that policy B remains more effective than policy A when it is <em>actually true.</em>

2. A type II error occurs when the null hypothesis H0, is not rejected when it is actually false. That is, accepting the assumption that policy B remains more effective than policy A when it is <em>actually false.</em>

3 0
3 years ago
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Answer:

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2 years ago
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