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Komok [63]
2 years ago
14

The expression P(z<1.00)= represents the area under the standard normal curve below a given value of z. Use your standard nor

mal table to find the indicated area. Use a sketch of the standard normal curve with the appropriate area shaded to help find the answer. What is the value of P(z<1.00)= ? Express your answer rounded to 4 decimal places. Enter your answer in the box. P(z<1.00)=
Mathematics
1 answer:
Ganezh [65]2 years ago
5 0

Answer:

The value of P(z<1.00)=0.8413

Step-by-step explanation:

Using a standard normal table, the area under the standard normal curve below the given value of z=1 is:

z         <u> .00</u>            .01

0.9   0.81594   0.81859

<u>1.0</u>    <u>0.84134</u>   0.84375

1.1     0.86433  0.86650


P(z<1.00)=0.84134

Rounded to 4 decimal paces

P(z<1.00)=0.8413


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Answer:

Linearly, because the table shows that the sunflowers increased by the same amount each month

Step-by-step explanation:

Given the table

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This means the number of sunflowers increases linearly, because the table shows that the sunflowers increased by the same amount each month

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A supervisor records the repair cost for 17 randomly selected stereos. A sample mean of $66.34 and standard deviation of $15.22
expeople1 [14]

Answer:

Critical value: T = 1.337

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Step-by-step explanation:

We have the standard deviation for the sample. So we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 17 - 1 = 16

80% confidence interval

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The margin of error is:

M = T*s = 1.337*15.22 = 20.349

In which s is the standard deviation of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 66.34 - 20.349 = $45.991

The upper end of the interval is the sample mean added to M. So it is 66.34 + 20.349 = $86.689

The 80% confidence interval for the mean repair cost for the stereos is between $45.991 and $86.689

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