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stira [4]
2 years ago
8

Please help this is a big test!

Mathematics
1 answer:
maria [59]2 years ago
6 0

Answer:

p - 0.25p

1.25p

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60points if you answer
Anton [14]
-4 > -5, -4 is > or equal to 5
7 0
2 years ago
Read 2 more answers
In a study of cereal leaf beetle damage to oats, researchers measured the number of beetle larvae per stem in small plots of oat
PSYCHO15rus [73]

Answer:

At 0.05 level of significance, there is no difference in the mean number of larvae per stem. This supports the scientist's claim.

(d) H0: MeanMalathion - MeanNoMalathion equals 0

H1: MeanMalathion - MeanNoMalathion not equals 0

Step-by-step explanation:

Test statistic (t) = (mean 1 - mean 2) ÷ sqrt[pooled variance (1/n1 + 1/n2)]

Let the difference between the two means be x and the pooled variance be y

n1 = 5, n2 = 12

t = x ÷ sqrt[y(1/5 + 1/12)] = x ÷ sqrt(0.283y) = x ÷ 0.532√y = 1.88x/√y

Assuming the ratio of x to √y is 0.5

t = 1.88×0.5 = 0.94

n1 + n2 = 5 + 12 = 17

degree of freedom = n1 + n2 - 2 = 17 - 2 = 15

significance level = 0.05 = 5%

critical value corresponding to 15 degrees of freedom and 5% confidence interval is 2.131

The test is a two-tailed test because the alternate hypothesis is expressed using not equal to.

The region of no rejection of the null hypothesis lies between -2.131 and 2.131

Conclusion

Fail to reject the null hypothesis because the test statistic 0.94 falls within the region bounded by the critical values.

The scientist's claim is right.

A null hypothesis is a statement from a population parameter which is either rejected or accepted (fail to reject) upon testing. It is expressed using the equality sign.

An alternate hypothesis is also a statement from a population parameter which negates the null hypothesis and is accepted if the null hypothesis is rejected. It is expressed using any of the inequality signs.

3 0
3 years ago
Which expression is equivalent to: (5⁹ × 5⁻⁷)⁻² ?
lutik1710 [3]

Answer:

(6^4 x 2^-9)

Step-by-step explanation:

4 0
2 years ago
Sales staff in a particular jewelry store makes $200 each week +5% of the sales which point describes the amount of money to sta
malfutka [58]

Answer:

Total amount paid to staff = $250

Step-by-step explanation:

Given:

Weekly payment = $200

Commission = 5% on sales

Amount of jewelry = $1,000

Find:

Total amount paid to staff

Computation:

Total amount paid to staff = Weekly payment + Commission

Total amount paid to staff = $200 + $1,000(5%)

Total amount paid to staff = $200 + $50

Total amount paid to staff = $250

6 0
2 years ago
Anyone help please? Thanks!
frutty [35]
which angle are you trying to find?
7 0
3 years ago
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