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Xelga [282]
4 years ago
7

A sample mean, sample standard deviation, and sample size are given. Perform the required hypothesis test about the mean, μ, of

the normal population from which the sample was drawn. , , n = 15, H0: μ = 32.6, Ha: μ ≠ 32.6, α = 0.05. Test statistic: t = 2.66. Critical values: t = ±2.145. Reject H0. There is sufficient evidence to support the claim that the mean is different from 32.6. Test statistic: t = 2.66. Critical values: t = ±1.96. Reject H0. There is sufficient evidence to support the claim that the mean is different from 32.6. Test statistic: t = 2.66. Critical values: t = ±1.96. Do not reject H0. There is not sufficient evidence to support the claim that the mean is different from 32.6. Test statistic: t = 2.66. Critical values: t = ±2.145. Do not reject H0. There is not sufficient evidence to support the claim that the mean is different from 32.6.
Mathematics
1 answer:
melamori03 [73]4 years ago
4 0

Answer:

Step-by-step explanation:

The null hypothesis is

H0: μ = 32.6

The alternative hypothesis is

Ha: μ ≠ 32.6

The calculated test statistic is 2.66 for the right tail and - 2.66 for the left tail

Since the critical values for both tails is ± 2.145, we would compare the critical values with the test statistic values

In order to reject the null hypothesis, the test statistic must be smaller than - 2.145 or greater than 2.145

Since - 2.66 < - 2.145 and 2.66 > 2.145, we would reject the null hypothesis.

Therefore, Reject H0. There is sufficient evidence to support the claim that the mean is different from 32.6.

2) Test statistic: t = 2.66. Critical values: t = ±1.96

Since - 2.66 < - 1.96 and 2.66 > 1.96, we would reject the null hypothesis. Then

Reject H0. There is sufficient evidence to support the claim that the mean is different from 32.6.

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Answer: I think it is 4 places to the left.

Step-by-step explanation: Usually when dividing numbers like 1000, 100, etc. with decimals, I count the amount of zeros and then move the decimal point to the left the amount of zeros there are. When you multiply you move the decimal to the right, when you divide you move the decimal to the left.

3 0
3 years ago
Mycaliforniapermit.com<br> i need answeres for this site
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8 0
3 years ago
If x=5^a, find the value of 5x
Harrizon [31]

Answer:

The given expression is written as 5^{1+a}

Step-by-step explanation:

Given as :

The expression is written as  x = 5^{a}

Now foe 5 x , the expression is written as

5^{1} × 5^{a}

Now <u>from base indices method </u>

here base is same so, power should be added

∴ 5^{1+a}

Hence The given expression is written as 5^{1+a} , Answer

8 0
3 years ago
g. a second stage smog device has been installed on 50 different industry firms in los angeles. an inspector plans to visit 10 r
Alborosie

The probability that 5 or less of the inspected firms that will result smog volation is 0.944.

Given that among 50 different industrial firms, 15 violate smog regulations and the sample size be 10.

We are required to find the probability that 5 or less of the inspected firms that will result smog violation.

Probability is basically the calculation of likeliness of happening an event among all the events possible. It lies between 0 and 1.

Probability=Number of items/ Total items.

Probability that the firm violates the regulations if 1 industry is chosen from 50 industrial firms=15/50=0.3

Probability that 5 or less of the inspected firms will result somg violations among 10 industrial firms=10C_{0}(0.3)^{0} (0.7)^{10}+  10C_{1}(0.3)^{1} (0.7)^{9}+10C_{2}(0.3)^{2} (0.7)^{7}+10C_{3}(0.3)^{3} (0.7)^{7}+10C_{4}(0.3)^{4} (0.7)^{6}+10C_{5}(0.3)^{5} (0.7)^{5}

=0.028+10*0.3*0.04+45*0.09*0.057+120*0.027*0.082+

210*0.0081*0.117+252*0.00243*0.16807

=0.028+0.12+0.23+0.265+0.199+0.102

=0.944

Hence the probability that 5 or less of the inspected firms that will result smog volation is 0.944.

Learn more about probability at brainly.com/question/24756209

#SPJ4

7 0
2 years ago
Solve 2x - 8 &lt; 7. A {x | x &lt; 1/2} B {x | x &gt; 1/2}C {x | x &lt; 15/2}D {x | x &gt; 15/2}
sweet [91]

Answer:

c x<15/2

Step-by-step explanation:

first you write your equation

then you add 8 to the right of the equation

then you divide 2x on both sides of the equation

then you will get you answer

then you graph your answer

when you graph it you will have a open circle

then last you will draw a line going left.

6 0
3 years ago
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