speech therapist gave a patient an assessment to test articulation. The patient pronounced 5 test items incorrectly out of a total of 20 test items. What is the percentage of test items that the patient pronounced correctly

A software company is interested in improving customer satisfaction rate from the 54% currently claimed. The company sponsored a survey of 164 customers and found that 101 customers were satisfied.

While her husband spent 2½ hours picking out new speakers, a statistician decided to determine whether the percent of men who enjoy shopping for electronic equipment is higher than the percent of women who enjoy shopping for electronic equipment. The population was Saturday afternoon shoppers. Out of 67 men, 25 said they enjoyed the activity. 6 of the 25 women surveyed claimed to enjoy the activity. Interpret the results of the survey. Conduct a hypothesis test at the 5% level. Let the subscript m = men and w = women.NOTE: If you are using a Student's t-distribution for the problem, including for paired data, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.) What is the p-value? (Round your answer to four decimal places.)

A company wanted to estimate the proportion of employees who use mass transit to get to work. The company conducted a survey of employees and 184 of 400 employees indicated they use mass transit to get to work. Find the standard error for the sample proportion of employees who use mass transit. Enter your answer as a decimal rounded to 3 decimal places. Select the correct answer below: a. 0.032 b. 0.460 c. 0.249 d. 0.025

Stephanie is trying to figure out the sample size of an experiment. She knows the population SD is 41.5 and the SD of the sample averages is 2.7. What is the sample size of the experiment?

A software company is interested in improving customer satisfaction rate from the 74% currently claimed. The company sponsored a survey of 113 customers and found that 90 customers were satisfied.

As part of a sixth-grade class project the teacher brings to class a large jar containing 200 gumballs of two different colors: red and green. Andy is asked to draw a sample of his own choosing and estimate the number of red gumballs in the jar. Andy draws a sample of 25 gumballs, of which 15 are red and the rest are green. Use Andy's sample to estimate the number of red gumballs in the jar. Answer:

A teacher surveyed the students in one of his algebra classes, asking how many hours they spend watching TV shows, movies, and videos on a weekday. Their responses are given. Complete parts (a) through (e) below. 10 3 4 2 35 0 2 1 5 2 4 2 1 0 1 2 3 743 3 4 b. One student wrote "3-9." What value would represent this response well? Include the value in the sample for parts (c) through (d). A good value to represent the range 3-9 is c. Construct a dotplot. Choose the correct graph below. OA. TV, Movie, and Video Viewing Time O B. TV. Movie, and Video Viewing Time 02 4 8. 10 6. Hours 10 Hours OC. TV, Movie, and Video Viewing Time OD. TV. Movie, and Video Viewing Time 4. Hours 8 10 2 8. 10 C Hours d. What proportion of the observations are between 1 and 3 hours, inclusive? The proportion of the observations between 1 and 3 hours, inclusive is (Round to the nearest thousandth as needed) e. What proportion of the observations are less than 5 hours? Activate Windows Go to Settings to activate…

According to recent data, 21 percent of people are left handed. In a sample of 100 people, how many would you expect to be left handed? Give the exact number.

The higher the level of significance, the more prone to errors is the decision. True or false?