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alexdok [17]
2 years ago
9

Please answer it for me too

Mathematics
2 answers:
geniusboy [140]2 years ago
7 0

Answer:

B, 10-30 million years ago

djyliett [7]2 years ago
6 0

Answer:

C

Step-by-step explanation:

I hope i got it correct :)

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A television network is deciding whether or not to give its newest television show a spot during prime viewing time at night. If
musickatia [10]

Answer:

a. The test statistic for this hypothesis would be z=1.71

b. Critical value at α = 0.10: z=1.282

c. Reject H0, the television network should not keep its current lineup.

d. H0: p ≤ 0.50; HA: p > 0.50

Step-by-step explanation:

We have to performa an hypothesis test on a proportion.

The claim is that the proportion of viewers that prefer the new show is bigger than 50% (meaning that most viewers prefer the new show).

The null hypothesis will state that both shows have the same proportion.

Then, the null and alternative hypothesis are:

H_0: \pi\leq0.50\\\\H_a: \pi>0.5

The sample proportion is p=0.53

p=X/n=438/827=0.53

The standard error of the proportion is:

\sigma_p=\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.5*0.5}{827}}= 0.017

Then, the z-statistic can be calculated as:

z=\dfrac{p-\pi-0.5/n}{\sigma_p}=\dfrac{0.53-0.50-0.5/827}{0.017}=\dfrac{ 0.029 }{0.017} =1.706

The critical value for a right tailed test at a significance level of 0.10 is zc=1.282. This value can be looked up in a standard normal distribution table.

As the statistic is bigger than the critical value, it lies in the rejection region. The null hypothesis is rejected. There is evidence to support the claim that the proportion of viewers which support the new show is larger than 0.50.

4 0
3 years ago
Mary Beth has 14.8 pounds of horse feed left to feed her horses. She feeds her horses 7 pounds of horse feed a day. About how ma
andreev551 [17]

<  = .6 < .301.62.. = 620.123

4 0
2 years ago
Read 2 more answers
I need help with this one I’m not sure if I got it right
weqwewe [10]

Answer:

144 feet

Step-by-step explanation:

Since this is a quadratic equation, we simply need to find the vertex in order to determine the maximum height!

To solve the equation, follow these steps!:

0 = 16t^2+96t\\\\\frac{-b}{2a} =x\\\\\frac{-96}{2(-16)}=3=x

Now we insert x back into the equation...

= -16(3)^2+96(3)\\ = -16(9)+288\\ =-144+288\\=144

7 0
2 years ago
a punch recipe that serves 24 people clothes for four leaders of lemon-lime soda,2 pints of sherbet and 6 cups of ice how much o
Aleksandr-060686 [28]
2 liters of soda, 1 pint of sherbert , and 3 cups of ice
7 0
2 years ago
Read 2 more answers
The distance to the sun is approximately 93,000,000 mi. A firefly is about 0.04 in. long. (a) What is the distance to the sun wr
stiks02 [169]
A) The answer is 9.3 * 10⁷ mi

First, represent the number as the product of a number in the range 1 up to 10 and a number divisible by 10:
93,000,000 mi = 9.3 * 10,000,000 mi

10,000,000 = 10 * 10 * 10 * 10 * 10 * 10 * 10 = 10⁷

 93,000,000 mi = 9.3 * 10,000,000 mi = 9.3 * 10⁷ mi


b) The answer is 4 * 10⁻² in

Represent the number as the product of a number in the range 1 up to 10 and a number divisible by 10.
0.04 in = 4 * 0.01 in

0.01 = 10⁻²

0.04 in = 4 * 0.01 in = 4 * 10⁻² in


c) The distance to the sun in inches is  5,892,480,000,000 in

1 mi = 63,360 in
93,000,000 mi = 93,000,000 * 63,360 in = 5,892,480,000,000 in

<span>How many fireflies would it take to reach the sun if they were put end to end:
</span>147,312,000,000,000<span>

x - number of fireflies
x * 0.04 in = </span>5,892,480,000,000 in
x = 5,892,480,000,000 in / 0.04 in
x = 147,312,000,000,000
3 0
3 years ago
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