How many cubes unit fit the container
1 answer:
You might be interested in
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: 20%.
Step-by-step explanation:
Given, The price of a shirt is marked down from $12.50 to $10.00.
Previous price = $12.50
New price = $10.00
Change in price = Previous price - New price
= $12.50 - $10.00
= $2.50
Now, the percent decrease of the shirt =
Hence, the percent decrease of the shirt = 20%.