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2 years ago

8

The sampling distribution of the ratio of two independent sample variances selected randomly from normal populations with equal

variances is:

1 answer:

Likurg_2 [28]2 years ago

5 0

Answer: F distribution. chi-square distribution. t distribution. normal distribution.

Step-by-step explanation:

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the value of a car is 28,000 bit it is depreciating 12% per year how much will the car be worth in 8 years

dexar [7]

Answer:

Hello,

10,070

Step-by-step explanation:

100% - 12% = 88% = 0.88

28,000 x 0.88^8 = 10,069.76...

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2 years ago

For which fraction pairs would it be useful to use the benchmarks 0, One-half, and 1 to compare? Check all that apply.

koban [17]

Answer:

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Step-by-step explanation:

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2 years ago

Select the correct answer.

Alex787 [66]

Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers

What's the answer of the this-48.3÷(-7)

goblinko [34]

the answer is 6.9.

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4 0

3 years ago

AlekseyPX

Answer:

The population mean is 5 volts

Step-by-step explanation:

Output voltage is assumed to be normally distributed, with standard deviation 0.25 Volts

s=0.25

n = 8

$H_0:\mu = 5\\H_a:\mu \neq 5$

Sample mean = $\bar{x}=4.85$

Since n < 30 and population standard deviation is unknown

So, we will use t test

Formula : $t = \frac{x-\mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{4.85-5}{\frac{0.25}{\sqrt{8}}}$

t=-1.69

Refer the t table for p value

Degree of freedom = n-1 = 8-1 = 7

So, $t_{(df,\alpha)}=t_{7,0.05}=2.365$

P value >α

So, We are failed to reject null hypothesis

Hence The population mean is 5 volts

7 0

3 years ago