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zhannawk [14.2K]
2 years ago
13

In 3 and 4, determine whether each question is statistical or not statistical.

Mathematics
1 answer:
Kay [80]2 years ago
4 0

Answer: The first is non statistical, the second is statsitical

Step-by-step explanation: Statistical questions will collect answers the can vary.

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Janet Woo decided to retire to Florida in 6 years. What amount should Janet invest today so she can withdraw $51,500 at the end
Elina [12.6K]

Answer:

$293,562.707

Step-by-step explanation:

As for the provided details we know,

Janet needs $51,500 from end of 7th year for upcoming 20 years.

The present value of 20 installments of $51,500 shall be @ 6% from year 7 to year 8.0858

Thus total value = $51,500 \times 8.0858 = $416,418.7

Now the compound interest factor for 6 year @ 6 % = 1.4185

Thus, value to be invested today = $416,418.70/1.4185 = $293,562.707

As this when compounded annually will provide the balance as required at the end of 6 years.

7 0
3 years ago
Can someone solve this question of trigonometry by finding the value of X ​
vekshin1
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explanation:

6 0
3 years ago
Please answer this!!
balu736 [363]

Answer:

3,724 cubic inches

Step-by-step explanation:

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5 0
3 years ago
Consider the following hypothesis test: H 0: 20 H a: < 20 A sample of 60 provided a sample mean of 19.5. The population stand
viva [34]

Answer:

We reject the null hypothesis and accept the alternate hypothesis. Thus, it be concluded that the population mean is less than 20.          

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 60

Sample mean, \bar{x} = 19.5

Sample size, n = 60

Alpha, α = 0.05

Population standard deviation, σ = 1.8

First, we design the null and the alternate hypothesis

H_{0}: \mu = 20\\H_A: \mu < 20

We use One-tailed z test to perform this hypothesis.

Formula:

z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

Putting all the values, we have

z_{stat} = \displaystyle\frac{19.5 - 20}{\frac{1.8}{\sqrt{60}} } = -2.151

Now, z_{critical} \text{ at 0.05 level of significance } = -1.64

Since,  

z_{stat} < z_{critical}

We reject the null hypothesis and accept the alternate hypothesis. Thus, it be concluded that the population mean is less than 20.

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4 years ago
What’s the length of EF in the right triangle below
Licemer1 [7]
HOPE it helps!!!!!!!!!
plz mark as a brainliest answer!!!!!!

4 0
3 years ago
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