If a car travels 180 miles in 4 hours, how many miles would it go in 6?
1 answer:
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Answer:
There is evidence to show that the single-earner couples on average spend more time watching television together
Step-by-step explanation:
Given that a recent study compared the time spent together by single- and dual-earner couples. According to the records kept by the wives during the study, the mean amount of time spent together watching television among the single-earner couples was 61 minutes per day, with a standard deviation of 15.5 minutes. For the dual-earner couples, the mean number of minutes spent watching television was 48.4 minutes, with a standard deviation of 18.1 minutes.
(Right tailed test where x stands for single earner and y for double)
Let us assume sample sizes are 500 each.
Difference -12.600
Standard error 1.066
95% CI -14.6913 to -10.5087
t-statistic -11.823
DF 998
Significance level P < 0.0001
Since p is less than alpha we reject null hypothesis.
There is evidence to show that the single-earner couples on average spend more time watching television together
Answer:
Thus, the equation hat correctly represents the number of ounces of beef stock, , that the chef initially prepares.
⇒
The total number of ounces of beef stock = 126
Step-by-step explanation:
Given:
Total ounces of beef stock =
The chef divided the beef stock evenly into 3 smaller pans.
The chef then uses 8 ounces from one of the smaller pans.
Ounces of beef stock left in the smaller pan = 34
Solution:
Total ounces of beef stock =
Ounces of beef stock in each smaller pan =
Ounces of beef stock used by the chef from the smaller pan = 8.
The ounces of beef stock left in the smaller pan will be given as:
⇒
Ounces of beef stock remaining in smaller pan = 34
Thus, the equation hat correctly represents the number of ounces of beef stock, , that the chef initially prepares.
⇒
Solving for .
Adding 8 both sides.
⇒
⇒
Multiplying both sides by 3.
⇒
∴
Thus, total number of ounces of beef stock = 126