All categories

2 years ago

Which of the following statements is false?

Mathematics

1 answer:

LUCKY_DIMON [66]2 years ago

8 0

Answer:

i think the second answer??

Step-by-step explanation:

You might be interested in

In a survey sample of 83 respondents, the mean number of hours worked per week is 39.04, with a standard deviation of 11.51. Cal

soldier1979 [14.2K]

Given that,

Sample size= 83

Mean number= 39.04

Standard deviation= 11.51

We know the critical t-value for 95% confidence interval which is equal to 1.989.

We also know the formula for confidence interval,

CI=( mean number - critical t-value*standard deviation/(sample size)^(1/2), mean number + critical t-value*standard deviation/(sample size)^(1/2))

So, we have

CI= (39.04 - 1.989*11.51/83^(1/2), 39.04 + 1.989*11.51/83^(1/2)

CI= (39.04 - 2.513,39.04 + 2.513)

CI= (36.527,41.553)

Therefore, 95% confidence interval for these data is (36.527,41.553), and this result interpret that the true value for this survey sample lie in the interval (36.527,41.553).

8 0

2 years ago

Read 2 more answers

The simplest form of (a −2 / b −1 +b −2 / a −1 )-1

ss7ja [257]

put ur ASSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS IN UR FATHER

8 0

2 years ago

A coin is tossed seven times and the sequence of heads and tails is observed. what is the number of different outcomes having ex

Margaret [11]

You could make a tree diagram
H T ← 1st toss

H T H T ← 2nd toss

H T H T H T H T ← 3rd toss
etc ,,, then count the combination of favorable outcomes

Using a calculator:
Total number of outcomes is $2^{7}$ = 128
Probability of getting exactly 3 heads is found using the follow calculator feature: binompdf(7, 0.5, 3)

ANSWER: Typed into the calculator as follows binompdf(7,0.5,3)×128 = 35

7 0

2 years ago

Plz help me get the answer

Fantom [35]

-3y = -4x +51

y = 4/3 - 17

there you go

7 0

2 years ago

Read 2 more answers

Need help with this problem:

arlik [135]

Answer:

843 days

Step-by-step explanation:

7 0

2 years ago