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vivado [14]
3 years ago
12

Ticket Prices for a Science museum are $18 for adults and $12 for students. If $162 is collected from a group of 12 people, How

many adults and students are in the group?​
Mathematics
1 answer:
vova2212 [387]3 years ago
3 0

Answer:

Step-by-step explanation:

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Answer:125

Step-by-step explanation:

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Jenny drove 638 miles and 11 hours at the same rate how many miles would she drive-in 7 hours
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Given the information below, write the conclusion in context. 1. H0 : The proportion of defective batteries = 0.02 2. HA : The p
Marizza181 [45]

Answer:

z = -1.23

And we can calculate the p value with the following probability taking in count the alternative hypothesis:

p_v = P(z

And for this case using a significance level of \alpha=0.05 ,0.1 we see that the p value is larger than the significance level so then we can conclude that we FAIL to reject the null hypothesis and we don't have enough  evidence to conclude that the true proportion is less than 0.02

Step-by-step explanation:

For this case we want to test the following system of hypothesis:

Null hypothesis: p =0.02

Alternative hypothesis: p < 0.02

The statistic for this case is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

And for this case we know that the statistic is given by:

z = -1.23

And we can calculate the p value with the following probability taking in count the alternative hypothesis:

p_v = P(z

And for this case using a significance level of \alpha=0.05 ,0.1 we see that the p value is larger than the significance level so then we can conclude that we FAIL to reject the null hypothesis and we don't have enough  evidence to conclude that the true proportion is less than 0.02

5 0
3 years ago
Anyone please help me???????
lara31 [8.8K]
The answer is B. y=2
3 0
3 years ago
A park has two biking trails. Tailand Trail is 5 3/10 long. Mayland Trail is 2 4/5 miles long. How much longer is Tailand Trail
zvonat [6]

Answer: 2 1/2 miles

Step-by-step explanation:

To subtract fractions with different denominators (in this problem they are 10 and 5), you have to find the least common denominator or LCD (10). Then you have to multiply the numerator and the denominator of 4/5 by 2 to turn the denominator into the LCD (10).

1. So 2 4/5 turns into 2 8/10

2. Then subtract 2 8/10 from 5 3/10 to get the answer 2 1/2

6 0
3 years ago
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