Gina gets money from her grandfather every day for the entire week of her birthday, starting on Monday. She gets $2 on Monday, $
2 answers:
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<u>G</u><u>i</u><u>v</u><u>e</u><u>n</u><u> </u><u>:</u><u> </u>
- <u>length</u><u> </u>= 12km
- <u>brea</u><u>d</u><u>t</u><u>h</u><u> </u>= 2km
<u>To</u><u> </u><u>find</u><u> </u><u>:</u><u> </u>
- Area of rectangle
<u>F</u><u>o</u><u>r</u><u>m</u><u>u</u><u>l</u><u>a</u><u> </u>:
- Area of rectangle = length × breadth .
<u>procedure</u><u> </u><u>:</u>
putting value of the given data into formula :
Area of rectangle = 12km ×2 km
= 24km ^2
Ans = 24km^2
Answer:
a 0.5
b 0.4831
c 0.4354 < P < 0.53008
Step-by-step explanation:
Given that :
Probability (P) of a head or a tail when a coin is being tossed or flipped = 1/2 = 0.5
Sample size (n) = 296
Selected sample (X) = 143
a) Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct responses would be expected if the touch therapists made random guesses?
The proportion of correct responses that would be expected if the touch therapists made random guesses is 0.5
b) Using Emily's sample results, what is the best point estimate of the therapists' success rate?
Point estimate
=
= 0.4831
c) Using Emily's sample results, construct a 90% confidence interval estimate of the proportion of correct responses made by touch therapists.
The for 90% is 1.645
Using the formula P" -E < P < P" + E
where E = margin of error :
= 0.0477
∴ P" -E < P < P" + E
= 0.4831 - 0.0477 < P < 0.4831 + 0.0477
= 0.4354 < P < 0.53008