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tigry1 [53]
3 years ago
15

Internet prices for glasses are often considerably lower than those at the brick and mortar stores but quality is another questi

on. To address that issue, some optometrists ordered 154 adult pairs of spectacles from various online stores. Of the 154 pairs of spectacles, 44 pairs of eye wear contained at least one lens that did not pass optical analysis testing.
Required:
a. Conduct a test of hypotheses with the intent of establishing that the probability of not passing the optical analysis testing is greater than 0.20. Use level of significance 0.05.
b. Calculate the p-value and comment.
Mathematics
1 answer:
FinnZ [79.3K]3 years ago
3 0
The answer would be B hope I could help (: next time try to make it more explained (:
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A man earns 5000 for 10 days work.how should he earn in 14,if working at the same rate
Mademuasel [1]
He earns $500 every day, so 500 times 14 is 7000

Answer: $7000
7 0
2 years ago
Read 2 more answers
5 x 3 x 2 +3/0 -45/3+1 =
Norma-Jean [14]

5 \times 3 \times 2 +  \frac{3}{0}  -  \frac{45}{3}  + 1 =  \\  \\  =  \frac{3}{0} \\  \\ or \\  \\ 1. \: 30 +  \frac{3}{0}   -  \frac{45}{3}  + 1 \\ 2. \: 30 +  \infty  -  \frac{45}{3}  + 1 \\ 3. \: 30 +  \infty  - 15 + 1 \\ 4. \:  \infty

Yeah it's Impossible

4 0
3 years ago
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What is 2 5/12 - 1 7/12 =
castortr0y [4]

Answer:

Divide: 7/12  : 3/10  = 7/12  · 10/3= 7 · 10  /12 · 3  = 70/36  = 35/18

To divide one fraction by another, invert (turn upside-down) the second fraction, then multiply.

Hope this helps:)sorry if it doesnt

4 0
3 years ago
The ratio of chaperones to students on a field trip to New York City is 2 to 11. If there are 297 students on the trip, how many
Olenka [21]
297/11 = 27

So we have 27 groups of 11 students. If there are 2 chaperones for every 11 students, then we can do:

27x2=54

There are 54 chaperones on the field trip.
7 0
2 years ago
What is this?!? worth 10 points!
GREYUIT [131]

d. 24 I'm pretty sure

8 0
3 years ago
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