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Dmitriy789 [7]
2 years ago
9

The health of the bear population in Yellowstone National Park is monitored by periodic measurements taken from anesthetized bea

rs. A sample of 54 bears has a mean weight of 182.9 lb. Assuming that σ is known to be 121.8 lb, use a 0.05 significance level to test the claim that the population mean of all such bear weights is greater than 150 lb. Find P and state the conclusion.
A. 0.0239, fail to reject
B. 0.9761, reject the null hypothesis
C. 0.9761, fail to reject
D. 0.0239, reject the null hypothesis
Mathematics
2 answers:
777dan777 [17]2 years ago
8 0
I think it’s C I really don’t know
horrorfan [7]2 years ago
6 0

Answer:

0.0239; reject the null hypothesis

Step-by-step explanation:

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Benjamin believes that ¼ % is equivalent to 25%. Is he correct? Why or Why not?
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Mandy used the input and output in this table to write ratios. She concluded that because they are not all equivalent, this is n
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Answer:

No. The last ratio is not written with the values in the same position as the others. It should be 50

10

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Step-by-step explanation:

I just did this!

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2 years ago
Andy buys x cakes. Betty buys 4 times as many cakes as Andy. Colin buys 3 more cakes than Andy. Each cake costs 65p. The total c
Paladinen [302]

Answer:

Each cake cost £ 13.00

Step-by-step explanation:

We were given that, each cake costs 65p or £ 0.65

Andy buys x cakes.

Andy's cost is

£0.65x


Betty buys 4 times as many cakes as  Andy.

Betty's cost is

£0.65(4x)

£2.60x


Colin buys 3 more cakes than Andy

Colin's cost is

£0.65(x+3)


The total cost of the cakes is £ 52.65.


This implies that,

0.65x+0.65(x+3)+2.60x=52.65


We expand to get,

0.65x+0.65x+1.95+2.60x=52.65


We group like terms to get,


0.65x+0.65x+2.60x=52.65-1.95

This gives us,

0.65x+0.65x+2.60x=52.65-1.95


This implies that,


3.9x=50.7


x=\frac{50.7}{3.9}


x=13


Therefore each cake cost £ 13.00






8 0
2 years ago
6051 was rounded to the nearest one. What is the lower bound?
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Answer:

6050

Step-by-step explanation:

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