0.32 to the nearest hundredth would be 0.3
Step-by-step explanation:
Mean = 81740
Standard deviation = 4590
Sample size = 15
Alpha level = 1-0.95 = 0.05
Df = 15-1 = 14
Critical value:
alpha/2 = 0.05/2 = 0.05
t0.025
t critical value = 2.145
Margin of error ME
2.145 x 4590/√15
2.145 x 4590/3.873
ME = 2542.09
Confidence interval
Lower CI = mean - ME
= 81740-2542.09
= 79197.91
Upper CI = mean + ME
= 81740+2542.09
= 84282.09
[ 79197.91, 84282.09]
B.
Using excel, exact answer for CI
Lower limit = 79198.142724212173
Upper limit = 84281.8572757827
C.
The assumptions to be made from the population are that
1. Samples are random
2. These samples are gotten from an approximately normal distribution
Answer:
a.$4165
b.$4956.35
Step-by-step explanation:
a)19% × 3500 = 665.
3500+665 =4165
b)19% × 4165 =<u> </u><u>7</u><u>9</u><u>1</u><u>.</u><u>3</u><u>5</u>
<u>4</u><u>1</u><u>6</u><u>5</u><u>+</u><u>7</u><u>9</u><u>1</u><u>.</u><u>3</u><u>5</u><u>=</u><u> </u><u>4</u><u>9</u><u>5</u><u>6</u><u>.</u><u>3</u><u>5</u>
Answer:
D
Step-by-step explanation:
Quadrant II is the top right corner. Both of the values are positive there so the only correct answer is D.
Hope this helps!
Positive values of r show a positive correlation and negative values of r show negative correlation.
Values of r near 1 or -1 represent strong correlation and values of r close to 0 represent weak correlation.
The given value of r = 0.17.
This value is positive and close to 0. Therefore, it describes a weak positive association between the two variables
