Very good The table to the right shows the cost per ounce (in dollars) for a random sample of toothpastes exhibiting very good stain removal, good stain removal, and fair stain removal. At a = 0.025, can you conclude that the mean costs per ounce are different? Perform a one-way ANOVA test by completing parts a through d. Assume that each sample is drawn from a normal population, that the samples are independent of each other, and that the populations have the stain removal re 0.35 same variances. 0.49 0.36 1.44 0.47 0.33 ..... (a) Identify the claim and state H, and Ha. Choose the correct answer below. O A. Ho: At least one mean is different from the others. (claim) O B. Ho: H1 =#2 = H3 Ha: H1 = H2 = H3 = H4 = H5 = H6 Ha: At least one mean is different from the others. (cl Oc. Ho: H1 = H2 = H3 = H4 = H5 = H6 Ha: At least two means are different from the others. (claim) O D. Ho: H1 = H2 = H3 (claim) Ha: At least one mean is different from the others.

Determine the area under the standard normal curve that lies between (a) Z= - 2.01 and Z= 2.01, (b) Z = - 0.36 and Z = 0, and (c) Z= - 2.02 and Z= 0.36. Click the icon to view a table of areas under the normal curve. ... (a) The area that lies between Z= - 2.01 and Z= 2.01 is (Round to four decimal places as needed.) (b) The area that lies between Z= - 0.36 and Z=0 is (Round to four decimal places as needed.) (c) The area that lies between Z = - 2.02 and Z = 0.36 is (Round to four decimal places as needed.)

Exactly 50% of the area under the normal curve lies to the right of the mean. tRUE OR FLASE?

Find the area under the normal distribution curve between Z= 0.65 and Z= 2.30.

Use the standard normal table to find the z-score that corresponds to the cumulative area 0.0150. If the area is not in the table, use the entry closest to the area. If the area is halfway between two entries, use the z-score halfway between the corresponding z-scores. Click to view page 1 of the standard normal table. Click to view page 2 of the standard normal table. (Type an integer or decimal rounded to three decimal places as needed.) Enter your answer in the answer box.

A hotel manager is reviewing the number of rented rooms per day. On a certain day, the z-score is 1.49  Find the area to the right of the z-score 1.49 under the standard normal curve. z1.21.31.40.000.88490.90320.91920.010.88690.90490.92070.020.88880.90660.92220.030.89070.90820.92360.040.89250.90990.92510.050.89440.91150.92650.060.89620.91310.92790.070.89800.91470.92920.080.89970.91620.93060.090.90150.91770.9319 Use the value(s) from the table above.   Provide your answer below:

Find the area of the following z-scores using the z-table and draw the corresponding area under the standard normal curve on the space provided.

Use the standard normal table to find the​ z-score that corresponds to the cumulative area 0.9848. If the area is not in the​ table, use the entry closest to the area. If the area is halfway between two​ entries, use the​ z-score halfway between the corresponding​ z-scores.

Find the area to the right of the z-score 0.03 under the standard normal curve. z−0.2−0.10.00.10.000.42070.46020.50000.53980.010.41680.45620.50400.54380.020.41290.45220.50800.54780.030.40900.44830.51200.55170.040.40520.44430.51600.55570.050.40130.44040.51990.55960.060.39740.43640.52390.56360.070.39360.43250.52790.56750.080.38970.42860.53190.57140.090.38590.42470.53590.5753 Use the value(s) from the table above.   Provide your answer below:         FEEDBACK                   Content attribution- Opens a dialog

In a standard normal curve, what is the area between z = 0.27 and z = 2.03? O a. 37.24% O b. 47.88% O c. 10.64% O d. 58.52%