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uranmaximum [27]
3 years ago
12

A produce manager inspects large truckloads of potatoes to determine the proportion with major defects (p). She intends to compu

te a 95% confidence interval for p. To do so, she selects an SRS of 50 potatoes from the more than 2,000 potatoes in the truck. Suppose that only 2 potatoes sampled are found to have major defects.
1. The P-value of her test is:_____.
a. 0.4082.
b. 0.0918.
c. 0.0400.
d. less than 0.0002.
2. Which of the assumptions for inference about a proportion are violated?
a. the data are an SRS from the population of interest.
b. the population is at least 10 times as large as the sample.
c. n is so large that both np0 and n(1-p0) are 10 or more, where p0 is the proportion with major defects if the null hypothesis is true.
d. there appear to be no violations.
3. A 95% plus four confidence interval for the true proportion of potatoes in the truck that have major defects is:____.
a. 0.06±0.026.
b. 0.06±0.051.
c. 0.077±0.026.
d. 0.077±0.051.
Mathematics
1 answer:
son4ous [18]3 years ago
7 0

Answer:

1. 0.4082

2. The data are an SRS from the population of interest

3. 0.06 +- 0.051

Step-by-step explanation:

Hypothesis testing is carried out to give conclusion about data set. The p value determines whether to accept or reject the null hypothesis. Alternative hypothesis is created against the null hypothesis to test the observation of data.

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3 years ago
Darin can purchase tile at a store for 0.79 per tile and rent a tile saw for $24. At another store, he can borrow the tile saw f
ankoles [38]
Let us denote the number of tiles by T.

In the first store, if Darin bought T tiles, he would need to spend:
                        0.79\times T+24 (measured in $)

In the second store, if Darin bought T tiles, he would need to spend:
                        1.19\times T (measured in $)

For the cost to be the same at both stores, it means (measured in $)
                                           1.19T=0.79T+24

Moving 0.79T over to the left hand side and changing signs:
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                                            0.4T=24
                                            T= \frac{24}{0.4}
                                            T=60 tiles

Let's check. If he buys 60 tiles in the first store, he spends:
                              $0.79×60 + $24 = $47.40 + $24 = $71.40

If he buys 60 tiles in the second store, he spends:
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∴ Darin needs to buy 60 tiles for the cost to be the same at both stores.
7 0
3 years ago
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tresset_1 [31]

Answer:

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Step-by-step explanation:

sana makatulog

3 0
2 years ago
Can somebody help me with all of them my mom is kinda getting annoying..
tatuchka [14]

Answer:

These are the answers for question 3 only.

Step-by-step explanation:

3)

a. 3 <u>></u> -3

b. 12 <u><</u> 24

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e. 7.2 <u>></u> 7

f. -7.2 <u><</u> -7

g. -1.5 <u>=</u> -3/2

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Which of the following is the correct graph of the linear equation below?<br> 4+2<br> 2-3x+1
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Answer:

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Step-by-step explanation:

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