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evablogger [386]
3 years ago
15

A cognitive psychologist wants to investigate whether memory for a shopping list is affected by the strategy used to study the l

ist. She selects 20 random students and assigns each of them randomly to one of four different groups. Each group is given a different strategy by which to study the list. After the students study the list, they try to recall as many items as they can. The number of items remembered from the list for each students is given below.
Is there sufficient evidence to conclude that different strategies lead to different memory performance? Use significance level 0.05

Mathematics
1 answer:
Orlov [11]3 years ago
7 0

Answer:

There is no sufficient evidence

Step-by-step explanation:

See attached files

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a birthday cake at the bakery was $30 originally. During a sale, a discount of 28% was given. A further 15% discount was given t
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Answer:

$18.36

Step-by-step explanation:

In this question, we have to find the cost of the cake for the customer who orders a month early.

We know that the original price of the cake is $30.

We also know that there was a 28% discount and a 15% discount added to the purchase.

Remember, You don't add discount percentages together, you discount the prices separately.

Solve:

First, apply the 28% discount.

30 · 0.28 = 8.40

30 - 8.40 = 21.60

Now apply the 15% discount to the new price.

21.60 · 0.15 = 3.24

21.60 - 3.24 = $18.36

They needed to pay $18.36 for the cake.

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3 years ago
I need help answering the question
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Vertical angles are pairs of opposite made by 2 intersecting lines 
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What is the missing term in the factorization of 2x2 + 5x + 3?<br><br> (2x + 3)(x + )
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