Answer:
2.897
Step-by-step explanation:
Let us find the mean and variance for the sample first.
105 104 110 112
114 106 108 109
Mean = sum/8 = 108.5
Variance = 12
Std dev = sq rt of variance = 3.464
Std error = std dev/ sq rt n
since n =8, we get std error = 1.225
Since sample size is small, df =8-1 =7
For 95% confidence intervals, t critical value for two tailed=2.365
Margin of error = std error x t critical = 1.225(2.365)
=2.897
1,129.872 to the nearest hundred is 1,100
Answer:
4 and 6
Step-by-step explanation:
4 and 6
You need to use the cross product method to find your answer :
1 pizza = 2 ½ cups
3 pizzas = × cups
((2 ½) • 3) ÷ 1 = × cups
7 ½ ÷ 1 = × cups
7 ½ = × cups
⇨ So your answer is: You would need to use 7 ½ cups of flour to make 3 handmade pizzas!
There you go. I really hope this helped, if there’s anything just let me know! ☻
