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4 years ago

5

A milloniare estimates her wealth to be $2.2×10 to the nearst million dollars.what are the lower and upper bounds for the millio

niare's wealth

1 answer:

Andrews [41]4 years ago

3 0

Answer:

2.2 x10= = 22.2 =22 million.

Step-by-step explanation:

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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

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3 years ago

Find the x in the given triangle and at last do the proof...please help

viva [34]

Answer:

x = 42.67

Step-by-step explanation:

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3 years ago

Identify the recursive formula for the sequence given by the explicit formula An) = 20

UNO [17]

Answer: f(n) = {f(1)=-4

{f(n) = f(n-1) / 20 if n > 1

Or Answer B.

Step-by-step explanation:

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3 years ago

-8 1/16 as decimal number

Anon25 [30]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

(2/3)^2 without exponents

Goshia [24]

Answer:

$\frac{4}{9}$

Step-by-step explanation:

$(\frac{2}{3} )^{2} =\frac{2^2}{3^2} =4/9$

Hope that helps :)

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3 years ago