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deff fn [24]
3 years ago
10

Help please help please

Mathematics
1 answer:
scoundrel [369]3 years ago
8 0

Answer:

just use algebraic expression

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Emile has calculated a one-tailed z-statistic of -1.97 and wants to see if it is significant at the 5% significance level.
Keith_Richards [23]

Answer:

Z = -1.65

Step-by-step explanation:

Z-score:

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

What is the critical value for the 5% significance level?

One-tailed statistic, so Z with a p-value of 0.05.

Looking at the z-table, this is Z = -1.65, so this is the critical value for the 5% significance leve.

8 0
3 years ago
Quien me ayuda<br> (((2)³)¹)⁶<br> ((((-4)³)¹)⁷)¹
sukhopar [10]
I really don’t know and dudjduifhdhsid
4 0
3 years ago
A grocery store is making identical fruit baskets. The store has 120 bananas, 60 oranges, and 144 apples. Find the greatest numb
Nookie1986 [14]
2<span>5% + 40% +? </span>
<span>% = 100% 65% + ? </span>
<span>% = 100% ? </span>
<span>% = 35% .35*160 = 56 There are 56 grape fruit chews in the display case.</span>
6 0
3 years ago
Students in classes, displayed below, ate the same ratio of cheese pizza slices to pepperoni pizza slices. Complete
Nikitich [7]
Need more information to answer this, put up the whole question and table
6 0
3 years ago
Read 2 more answers
Someone told me the answer was 39?? Is this true? Why ? please help.
Ira Lisetskai [31]
The problem has the equation:

f(x) = (3) ^ (x/2)

In order to get the average increase in the number of flowers being pollinated from day 4 to day 10, then we need to use the equation substituting x with 4 to 10

f(4) = 9
f(5) = 12.59
f(6) = 27
f(7) = 46.77
f(8) = 81
f(9) = 140.30
f(10) = 243

Then add all the values and divide it by 7
 = 559.66 / 7
= 79.95

So the correct answer is 79.95
8 0
3 years ago
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