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faust18 [17]
3 years ago
10

An assembly line produced 23 units on Monday, 15 units on Tuesday, 20 units on Wednesday, 18 units on Thursday and 9 units on Fr

iday What was the average production for the line for the week?
Mathematics
2 answers:
Lelechka [254]3 years ago
5 0
To find the average in this problem you would add the number of units for each day and divide by the number of days (units/days) so the answer is 17
irga5000 [103]3 years ago
4 0
The answer is 17; you add the numbers, and divide by the number of days.  The numbers add up to 85; you divide 85 by 5 (days) to get 17.
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A random sample of 15 dvd players has a mean price of $64.30 and a standard deviation of $5.60. find a 95% confidence interval f
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8 0
3 years ago
A trucking firm has a large inventory of spare parts that have been in storage for a long time. It knowsthat some proportion of
Debora [2.8K]

Answer:

0.1546\leq \widehat{p}\leq 0.3513

Step-by-step explanation:

The firm tests 75 parts, and finds that 0.25 of them are notusable

n = 75

x = 0.25 \times 75 = 18.75≈19

\widehat{p}=\frac{x}{n}

\widehat{p}=\frac{19}{75}

\widehat{p}=0.253

Confidence level = 95%

So, Z_\alpha at 95% = 1.96

Formula of confidence interval of one sample proportion:

=\widehat{p}-Z_\alpha \sqrt{\frac{\widehat{p}(1-\widehat{p}}{n}}\leq \widehat{p}\leq \widehat{p}+Z_\alpha \sqrt{\frac{\widehat{p}(1-\widehat{p}}{n}}

=0.253-(1.96)\sqrt{\frac{0.253(1-0.253)}{75}}\leq \widehat{p}\leq0.253+(1.96)\sqrt{\frac{0.253(1-0.253}{75}}

Confidence interval =0.1546\leq \widehat{p}\leq 0.3513

7 0
3 years ago
At the doctor’s office, Martin learns that his heart beats 360 times in 5 minutes.How many does his heart beat per minute?
TEA [102]
To find this answer, just divide 360 by 5 to find out how many times his heart beats in one minute instead of 5. Doing this will give you a final answer of 72 bpm.
8 0
3 years ago
67 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
denis-greek [22]

Answer:

I think the answer is 5

Hopefully it works :)

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
5/2x - 1.5 = 3.5 what is the value of x
azamat

Answer:

2

Step-by-step explanation:

<em>Add 1.5 to both sides:</em>

5/2x-1.5+1.5=3.5+1.5

5/2x=5

<em>Multiply both sides by 2/5</em>

(2/5)*(5/2x)=(2/5)*(5)

8 0
3 years ago
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