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alexgriva [62]
3 years ago
13

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

Mathematics
1 answer:
Keith_Richards [23]3 years ago
8 0

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.

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Plus $5 per day. The fee for the game booth is $50 plus $7 per day.
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<em><u>A company sets up a food booth and a game booth at the county fair. The fee for the food booth is $100 plus $5 per day. The fee for the game both is $50 plus $7 per day. Write an expression for how much both will cost for the same number of days.</u></em>

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Find the area of the shaded sector. Leave your answers in terms of pi. \pi
Sergeu [11.5K]
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Answer 1: For the Parallelogram inside the rectangle the area = 48

Rectangle = 275     275+48 = 323

Answer 2: For the answer for the square inside the parallelogram = 36

The answer to the parallelogram = 120     120+36 = 156

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Sorry if u didn't have to add im not to good at this ;(

Hope that helped though!

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