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Tcecarenko [31]
3 years ago
13

The number of wiring packages that can be assembled by a company's employees has a normal distribution, with a mean equal to 19.

5 per hour and a standard deviation of 1.5 per hour. (a) What are the mean and standard deviation of the number x of packages produced per worker in an 8-hour day

Mathematics
1 answer:
mote1985 [20]3 years ago
7 0

Step-by-step explanation:

Below is an attachment containing the solution

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Molodets [167]

Answer:

B

Step-by-step explanation:

5+7.50+8.25+8+9.75+10.25+11+10.75 = 70.5

70.5 \div 8 = 8.8125

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Determine the Type I error if the null hypothesis, H0, is: an electrician claims that no more than 10% of homes in the city are
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Answer : There are no more than 10% of homes in the city are not up to the current electric codes but actually we do not have evidence to accept it.

Explanation:

The Type I error occurs when the null hypothesis is true but we reject it.

Given null hypothesis : H_0 : an electrician claims that no more than 10% of homes in the city are not up to the current electric codes.

The Type I error for the given situation is that there are no more than 10% of homes in the city are not up to the current electric codes but actually we do not have evidence to accept it.

3 0
3 years ago
Hans bought 3 CDs that were each the same price. Including sales tax, he paid a total of $53.40. Of that total, $3.60 was tax. W
Jet001 [13]

Answer:

$16.6

Step-by-step explanation:

x is the price of each CD before tax

so 3x + 3.60 = 53.40

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x = 49.80/3 = 16.6

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I need help with homwork. (please) <br> On topic of exponents. Show all work
Blizzard [7]

Answer:

Step-by-step explanation:

Step-by-step explanation:

5:28^25 I think

6:keep the base multiply exponents

7:no because you would multiply the bases and keep the exponent the same

8:7 because 7 x 5= 35

1: 2 and 3 for the second part of it 2 and 5

2:7^30

3:54^3

4:Yes they are just flipped

5 0
3 years ago
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melisa1 [442]

Answer:

x=71

Step-by-step explanation:

38+x+x=180

x+x=142

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x=71

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3 years ago
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