Degrees of freedom = df = n - 1 = - 1 =
At 90% confidence level the t is ,
= 1 - 90% = 1 - 0.90 = 0.1
t /2,df = t0.1,90 =1.292
Margin of error = E = t/2,df * (s /n)
= 1.292* ( 2517/ 81) = 361.33
LOWER BOUND
- E
3463 - 361.33
3102
In a random sample of 81 audited estate tax returns, it was determined that the mean amount of additional tax owed was...
9.3 In a random sample of 81 audited estate tax returns, it was determined that the mean amount of additional tax owed was $3425 with a standard deviation of $2547. Construct and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns. Click the icon to view the t-distribution table. The lower bound is 2960 (Round to the nearest dollar as needed.)
In a random sample of 100 audited estate tax returns, it was determined that the mean amount of additional tax owed was $3432 with a standard deviation of $2588. Construct and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns. Click the icon to view the t-distribution table. The lower bound is $ (Round to the nearest dollar as needed.)
In a random sample of 81 audited estate tax returns, it was determined that the mean amount of additional tax owed was $3447 with a standard deviation of $2590. Construct and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns. The lower bound is = (Round to the nearest dollar as needed)
In a random sample of 49 audited estate tax returns, it was determined that the mean amount of additional tax owed was $3455 with a standard deviation of $2501. Construct and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns. Click the icon to view the t-distribution table. The lower bound is $ . (Round to the nearest dollar as needed.) The upper bound is $ |(Round to the nearest dollar as...
In a random sample of 49 audited estate tax returns, it was determined that the mean amount of additional tax owed was $3423 with a standard deviation of $2585 Construct and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns. The lower bound is $___(Round to the nearest dollar as needed.) The upper bound is $___ (Round to the nearest dollar as needed.) Interpret a 90% confidence interval for the mean additional...
In a random sample of 81 audited estate tax returns, it was determined that the mean amount of additional tax owed was $3409 with a standard deviation of $2533. Construct and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns.
In a random sample of 81 audited estate tax returns, it was determined that the mean amount of additional tax owed was $3487 with a standard deviation of $2592 Construct and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns.
In a random sample of 64 audited estate tax returns, it was determined that the mean amount of additional tax owed was $3435 with standard deviation of $2559. Construct and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns. Click the icon to view the t-distribution table. The lower bound is $. (Round to the nearest dollar as needed.) The upper bound is $(Round to the nearest dollar as needed.) Interpret a...
In a random sample of 81 audited estate tax returns, it was determined that the mean amount of additional tax owed was $442 wth a standard deviation of 2554. Construct and intepasos conocer mean additional amount of tax owed for estate tax returns. Click here to view the standard normal distribution tabletage 1). Click here to view the standard normal distrution table (page 21 Click here to view the table of critical values Find and interpreta 90% confidence interval for...
In a random sample of 64 audited estate tax returns, it was determined that the mean amount of additional tax owed was $3423 with a standard deviation of $2516. Construct and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns. The lower bound is $_ . (Round to the nearest cent as needed.) The upper bound is $_. (Round to the nearest cent as needed.) Interpret a 90% confidence interval for the...